List of British politicians who have crossed the floor

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Members of the House of Commons of the United Kingdom, British members of the European Parliament, and members of the British devolved assemblies sometimes cross the floor and abandon a previous party membership to take up a new one. The following list details the dates, members involved, previous and new party affiliations, and an explanation for their switch. In addition, this list notes MPs who have lost or resigned a party whip to become independent, or moved from being independent to taking a party whip.

List of Members of Parliament who have crossed the floor

Date	Member	Before		After		Notes
MPs 1680-1832
1698	John Grubham Howe		Whig		Tory
1707	Sir Robert Harley		Whig		Tory
1725	John Montagu, Viscount Hinchingbrooke		Whig		Tory
1725	Sir William Pulteney		Whig		Tory
1793	William Windham		Whig		Independent
1795	Robert Stewart, Viscount Castlereagh		Whig		Tory
1795	Thomas Pelham		Whig		Tory
1810	Charles Watkin Wiliams-Wynn		Whig		Tory	Tried to create a third political party, failed and joined the Tories.
1828	Charles Watkin Wiliams-Wynn		Tory		Whig	Was not offered a position in Government.
1834	Charles Watkin Wiliams-Wynn		Whig		Tory	Offered position in Government.
1832–1847 Parliaments
1834	Lord George Bentinck		Whig		Conservative
1834	Sir James Robert George Graham, 2nd Baronet		Whig		Conservative	Resigned as First Lord of the Admiralty
1834	Lord Stanley		Whig		Conservative	Resigned as Secretary of State for War and the Colonies
1847-1886 Parliaments
1847	Sir John Young, 2nd Baronet		Conservative		Peelite
1853	Sir John Young, 2nd Baronet		Peelite		Conservative
1868	Edward James Saunderson		Liberal		Conservative
1886–1900 Parliaments
1886	Joseph Chamberlain		Liberal		Liberal Unionist	Created the Liberal Unionist Party after disagreeing with William Gladstone and splitting over Home Rule for Ireland and was the President of the Board of Trade until his defection.
1886	Sir Henry James		Liberal		Liberal Unionist	Was the Attorney-General until his defection.
1886	Edward Heneage		Liberal		Liberal Unionist	Was the Chancellor of the Duchy of Lancaster until his defection.
1886	Sir George Otto Trevelyan, 2nd Baronet		Liberal		Liberal Unionist	Was the Secretary for Scotland until his defection.
1886	Leonard Courtney		Liberal		Liberal Unionist	Chairman of Ways and Means 1886-1893
1886	Sir Henry Havelock-Allan, 1st Baronet		Liberal		Liberal Unionist	Was the Colonel of the Royal Irish Regiment from 1895-1897 until he was killed in battle in 1897 whilst serving as an MP.
1886	John Corbett		Liberal		Liberal Unionist
1886	William Cornwallis-West		Liberal		Liberal Unionist	Lord-Lieutenant of Denbighshire 1872-1917
1886	Sir William Crossman		Liberal		Liberal Unionist
1886	Sir Donald Currie		Liberal		Liberal Unionist
1886	George Dixon		Liberal		Liberal Unionist
1886	Viscount Wolmer		Liberal		Liberal Unionist
1886	Viscount Ebrington		Liberal		Liberal Unionist
1886	Viscount Howick		Liberal		Liberal Unionist
1886	Viscount Baring		Liberal		Liberal Unionist
1886	Viscount Lambton		Liberal		Liberal Unionist
1886	Lord Richard Grosvenor		Liberal		Liberal Unionist
1886	Lord Edward Cavendish		Liberal		Liberal Unionist
1886	Sir Thomas Fraser Grove, 1st Baronet		Liberal		Liberal Unionist
1886	Sir Robert Jardine, 1st Baronet		Liberal		Liberal Unionist
1886	Sir Savile Brinton Crossley, 2nd Baronet		Liberal		Liberal Unionist
1886	Sir John St Aubyn, 2nd Baronet		Liberal		Liberal Unionist
1886	Hugh Elliot		Liberal		Liberal Unionist
1886	Arthur Elliot		Liberal		Liberal Unionist
1886	Sir Andrew Fairbairn		Liberal		Liberal Unionist
1886	Sir Charles Seely, 1st Baronet		Liberal		Liberal Unionist
1886	Sir Alexander Brown, 1st Baronet		Liberal		Liberal Unionist
1886	Sir Henry Wiggin, 1st Baronet		Liberal		Liberal Unionist
1886	John Lubbock		Liberal		Liberal Unionist
1886	Francis Taylor		Liberal		Liberal Unionist
1886	Richard Frederick Fotheringham Campbell		Liberal		Liberal Unionist
1886	Archibald Corbett		Liberal		Liberal Unionist
1886	Jesse Collings		Liberal		Liberal Unionist
1886	Thomas Buchanan		Liberal		Liberal Unionist
1886	George Dixon		Liberal		Liberal Unionist
1886	William Kenrick		Liberal		Liberal Unionist
1886	Cathcart Wason		Liberal		Liberal Unionist
1886	Lewis Fry		Liberal		Liberal Unionist
1886	John Corbett		Liberal		Liberal Unionist
1886	Richard Biddulph Martin		Liberal		Liberal Unionist
1886	Sir John Pender		Liberal		Liberal Unionist
1886	Sir Henry Meysey-Thompson		Liberal		Liberal Unionist
1886	George Pitt-Lewis		Liberal		Liberal Unionist
1886	Alfred Barnes		Liberal		Liberal Unionist
1886	Lewis McIver		Liberal		Liberal Unionist
1886	Richard Chamberlain		Liberal		Liberal Unionist
1886	George Salis-Schwabe		Liberal		Liberal Unionist
1886	Francis William Maclean		Liberal		Liberal Unionist
1886	Francis Bingham Mildmay		Liberal		Liberal Unionist
1886	Hamar Alfred Bass		Liberal		Liberal Unionist
1886	Henry Hobhouse		Liberal		Liberal Unionist
1886	William Pirrie Sinclair		Liberal		Liberal Unionist
1886	John Jenkins		Liberal		Liberal Unionist
1886	Robert Finlay		Liberal		Liberal Unionist
1886	William Bickford-Smith		Liberal		Liberal Unionist
1886	Robert Thornhagh Gurdon		Liberal		Liberal Unionist
1886	Charles Fraser-Mackintosh		Liberal		Liberal Unionist
1886	Lewis Fry		Liberal		Liberal Unionist
1886	George Hastings		Liberal		Liberal Unionist
1886	Henry Howard		Liberal		Liberal Unionist
1886	Joseph Powell-Williams		Liberal		Liberal Unionist
1886	Thomas Richardson		Liberal		Liberal Unionist
1886	Sir Julian Goldsmid, 3rd Baronet		Liberal		Liberal Unionist
1886	Peter Rylands		Liberal		Liberal Unionist
1886	John Bright		Liberal		Liberal Unionist
1886	Jesse Collings		Liberal		Liberal Unionist
1886	James William Barclay		Liberal		Liberal Unionist
1886	Alfred Barnes		Liberal		Liberal Unionist
1886	Michael Biddulph		Liberal		Liberal Unionist
1886	Nevil Story Maskelyne		Liberal		Liberal Unionist
1886	Edmond Wodehouse		Liberal		Liberal Unionist
1886	William Sproston Caine		Liberal		Liberal Unionist
1886	Henry Frederick Beaumont		Liberal		Liberal Unionist
1886	Greville Richard Vernon		Liberal		Liberal Unionist
1888	Henry Wentworth-FitzWilliam		Liberal		Liberal Unionist
1888	Robert Cunninghame-Graham		Liberal		Independent
1888	Thomas Buchanan		Liberal Unionist		Liberal
1888	Sir Thomas Grove, 1st Baronet		Liberal Unionist		Liberal
1892	Benjamin Hingley		Liberal Unionist		Liberal
1893	George Joachim Goschen		Liberal Unionist		Conservative
1898	George Doughty		Liberal Unionist		Liberal
1899	Leonard Courtney		Liberal Unionist		Liberal
1900	George Whiteley		Conservative		Liberal
1900–1906 Parliament
1902	Cathcart Wason		Liberal Unionist		Liberal	Resigned seat and fought by-election as an Independent Liberal
1903	Michael Foster		Liberal Unionist		Liberal
1903	John William Wilson		Liberal Unionist		Liberal
1904	Winston Churchill		Conservative		Liberal
1904	Jack Seely		Conservative		Liberal
1904	Ivor Guest		Conservative		Liberal
1904	George Kemp		Liberal Unionist		Liberal
1904	Lord Richard Cavendish		Liberal Unionist		Liberal
1904	Edward Hain		Liberal Unionist		Liberal
1904	Richard Bell		Labour		Liberal
1905	John Dickson-Poynder		Conservative		Liberal
1906–1910 Parliaments
1908	Archibald Corbett		Liberal Unionist		Liberal
1909	Alexander Cross		Liberal Unionist		Liberal
1909	Arthur Elliot		Liberal Unionist		Independent	Stood as an independent
1909	Thomas Kincaid-Smith		Liberal		Independent	Stood as an independent
1909	Enoch Edwards		Liberal		Labour
1909	Frederick Hall		Liberal		Labour
1909	William Johnson		Liberal		Labour
1909	Carlyon Wilfroy Bellairs		Liberal		Liberal Unionist
1910	William Abraham		Liberal		Labour
1910	William Edwin Harvey		Liberal		Labour
1910	James Haslam		Liberal		Labour
1910	Thomas Richards		Liberal		Labour
1910	Albert Stanley		Liberal		Labour
1910	John Wadsworth		Liberal		Labour
1910	John Williams		Liberal		Labour
December 1910–1918 Parliament
1914	William Edwin Harvey		Labour		Liberal
1914	William Johnson		Labour		Liberal	He was expelled from the Labour party for addressing Liberal party meetings and refusing to form Labour organisations in his constituency. He re-joined the Liberals.
1915	John Hancock		Labour		Liberal	He was expelled from the Labour party and re-joined the Liberals.
1915	John Wadsworth		Labour		Liberal
1915	William Abraham		Labour		Liberal
1917	Sir Richard Cooper, 2nd Baronet		Conservative		Independent	Those who defected in 1917 actually joined the National Party, but before the General Election of 1918 all members apart from Croft and Cooper had returned to the Conservatives or had lost their seats.
1917	Sir Henry Page Croft		Conservative		Independent
1917	Lt Col. Richard Hamilton Rawson		Conservative		Independent
1917	Sir Alan Hughes Burgoyne		Conservative		Independent
1917	Lt Col. The Hon. Douglas George Carnegie		Conservative		Independent
1917	Viscount Duncannon		Conservative		Independent
1917	Sir Rowland Hunt		Liberal Unionist		Independent
1917	Captain The Hon. Edward Fitzroy		Liberal Unionist		Independent
1918–1922 Parliament
1918	George Nicoll Barnes		Labour		Independent	Had refused to resign from the Lloyd George Coalition
1918	Sir Leo Chiozza Money		Liberal		Labour	principally over the issues of nationalisation and redistribution of wealth through taxation which, in contrast with most Liberals, he supported
1919	Cecil L'Estrange Malone		Liberal		Independent	Subsequently joined the Communist Party of Great Britain.
1920	Sir Oswald Mosley, Bt		Conservative		Independent	Left over the Conservative Party's Irish policy, specifically the use of Black and Tans.
1922–1923 Parliament
1923	Gordon Ralph Hall Caine		Independent		Conservative
1923	James Malcolm Monteith Erskine		Independent		Conservative
1924–1929 Parliament
1924	Oswald Mosley		Independent		Labour
1926	Alfred Mond		Liberal		Conservative	Defected after falling out with Lloyd George
1927	George Alfred Spencer		Labour		Independent	Expelled from the Labour party for brokering a local settlement during the General Strike. Crossed the floor and sat on the Liberal benches.
1927	Leslie Haden-Guest		Labour		Independent	Resigned over China and tried to stand as an Independent.
1929–1931 Parliament
1931	Sir Oswald Mosley, 6th Baronet		Labour		New Party	Created the New Party
1931	Lady Cynthia Mosley		Labour		New Party	Joined the New Party
1931	Oliver Baldwin		Labour		New Party	Joined the New Party but left after one day and sat as an independent
1931	Robert Forgan		Labour		New Party	Joined the New Party
February 1931	John Strachey		Labour		New Party	Joined the New Party
1931	W. E. D. Allen		UUP		New Party	Joined the New Party
1931	Cecil Dudgeon		Liberal		New Party	Joined the New Party
1931	Oliver Baldwin		New Party		Independent	Joined the but left after one day and sat as an independent
June 1931	John Strachey		New Party		Independent	Did not agree with the party's drift towards fascism
1931	Ramsay MacDonald		Labour		National Labour	Expelled 24 August for leading a coalition with Opposition parties
1931	Malcolm MacDonald		Labour		National Labour	Resigned and followed his father on 24 August
1931	Philip Snowden		Labour		National Labour	Expelled 25 August
1931	J. H. Thomas		Labour		National Labour	Expelled 25 August
1931	William Jowitt		Labour		National Labour	Followed MacDonald on 28 August
1931	George Gillett		Labour		National Labour	Followed MacDonald on 31 August
1931	Ernest Bennett		Labour		National Labour	Followed MacDonald on 1 September
1931	George Knight		Labour		National Labour	Followed MacDonald on 2 September
1931	James Lovat-Fraser		Labour		National Labour	Followed MacDonald on 2 September
1931	Craigie Aitchison		Labour		National Labour	Followed MacDonald on 3 September
1931	Samuel Rosbotham		Labour		National Labour	Followed MacDonald on 5 September
1931	Archibald Church		Labour		National Labour	Followed MacDonald on 8 September
1931	Richard Denman		Labour		National Labour	Followed MacDonald on 10 September
1931	Sir Sydney Frank Markham		Labour		National Labour	Followed MacDonald on 16 September; later became a Conservative MP in 1950
1931	Derwent Hall Caine		Labour		National Labour	Followed MacDonald on 23 September
1935–1945 Parliament
1935	Katharine Stewart-Murray, Duchess of Atholl		Conservative		Independent	Resigned Whip over the India Bill and the "socialist tendency" of the government's domestic policy.
1935	Katharine Stewart-Murray, Duchess of Atholl		Independent		Conservative
1937	Katharine Stewart-Murray, Duchess of Atholl		Conservative		Independent	Resigned Whip over Anglo-Italian Agreement
1937	Katharine Stewart-Murray, Duchess of Atholl		Independent		Conservative
1938	Katharine Stewart-Murray, Duchess of Atholl		Conservative		Independent	Resigned a third time, this time to stand as an Independent in opposition to Neville Chamberlain's policy of appeasement of Adolf Hitler
November 1939	Aneurin Bevan		Labour		Independent	Expelled from the Labour Party for seven months for supporting a "popular front"
November 1939	Sir Stafford Cripps		Labour		Independent	Expelled from the Labour Party for seven months for supporting a "popular front"
November 1939	George Strauss		Labour		Independent	Expelled from the Labour Party for seven months for supporting a "popular front"
November 1939	Sir Charles Trevelyan, 3rd Baronet		Labour		Independent	Expelled from the Labour Party for seven months for supporting a "popular front"
December 1939	Clement Davies		Liberal National		Independent
1942	Murdoch Macdonald		Liberal National		Independent
1942	Edgar Granville		Liberal National		Independent
February 1942	Stephen King-Hall		National Labour		Independent	Opposed the party's considerations in wartime
July 1942	Sir Richard Acland		Liberal		Common Wealth	Formed the Common Wealth Party after a merger of the 1941 Committee and the Forward March movement
July 1942	Vernon Bartlett		Independent Progressive		Common Wealth	Fought the 1945 general election as an independent
May 1943	Kenneth Lindsay		National Labour		Independent
November 1944	John Eric Loverseed		Common Wealth		Independent	Later joined the Labour Party
April 1945	Edgar Granville		Independent		Liberal
1945–1950 Parliament
22 April 1946	Ernest Millington		Common Wealth		Labour
21 October 1946	Tom Horabin		Liberal		Independent	Declared support for the Labour government, and took the Labour whip on 18 November 1947.
26 March 1947	John McGovern		Ind. Labour Party		Labour
23 July 1947	Rev Campbell Stephen		Ind. Labour Party		Independent	Granted the Labour whip on 21 October 1947.
29 October 1947	James Carmichael		Ind. Labour Party		Independent	Granted the Labour whip on 3 November 1947.
4 November 1947	Evelyn Walkden		Labour		Independent	Following censure by the House for his conduct.
March 1948	John Mackie		Independent		Conservative
28 April 1948	John Platts-Mills		Labour		Independent	Expelled from party for sending supportive telegram to Pietro Nenni, Italian socialist allied with the Communists.
16 May 1948	Alfred Edwards		Labour		Conservative	Expelled from party for opposition to nationalisation of steel. Granted the Conservative whip on 19 August 1949.
26 October 1948	Ivor Thomas		Labour		Conservative	Resigned due to opposition to nationalisation of steel. Granted the Conservative whip on 3 January 1949.
3 October 1948	Eric Gandar Dower		Conservative		Independent	Dispute with local association.
18 May 1949	Leslie Solley		Labour		Independent	Expelled from party for persistently opposing government policies.
18 May 1948	Denis Nowell Pritt		Labour		Independent	Expelled from party for persistently opposing government policies.
18 May 1949	Konni Zilliacus		Labour		Independent	Expelled from party for persistently opposing government policies.
27 July 1948	Lester Hutchinson		Labour		Independent	Expelled from party for opposition to government foreign policy.
1950–1951 Parliament
4 August 1950	Raymond Blackburn		Labour		Independent	Called for Winston Churchill to be Prime Minister in a Coalition government.
May 1951	John MacLeod		Independent		Liberal National
1951	Sir Arthur Salter		Independent		Conservative
1951–1955 Parliament
2 June 1954	Sir John Mellor		Conservative		Independent	Resigned whip over increase in MPs' salaries (Mellor was opposed). Whip restored 14 July 1954.
14 July 1954	Sir John Mellor		Independent		Conservative
14 July 1954	Sir Harry Legge-Bourke		Conservative		Independent	Opposed to policy of withdrawing British base in Suez canal zone. Whip restored 18 October 1954.
18 October 1954	Sir Harry Legge-Bourke		Independent		Conservative
23 November 1954	S. O. Davies		Labour		Independent	Whip withdrawn after breaking the whip over German rearmament.
23 November 1954	George Craddock		Labour		Independent	Whip withdrawn after breaking the whip over German rearmament.
23 November 1954	Ernest Fernyhough		Labour		Independent	Whip withdrawn after breaking the whip over German rearmament.
23 November 1954	Emrys Hughes		Labour		Independent	Whip withdrawn after breaking the whip over German rearmament.
23 November 1954	Sydney Silverman		Labour		Independent	Whip withdrawn after breaking the whip over German rearmament.
23 November 1954	Victor Yates		Labour		Independent	Whip withdrawn after breaking the whip over German rearmament.
23 November 1954	John McGovern		Labour		Independent	Whip withdrawn after breaking the whip over German rearmament.
10 March 1955	Sir Richard Acland, Bt.		Labour		Independent	Opposed to party policy on nuclear arms. Simultaneously resigned his seat in order to seek re-election.
16 March 1955	Aneurin Bevan		Labour		Independent	Whip withdrawn for challenging the authority of Party leader. Whip restored 28 April 1955.
April 1955	S. O. Davies		Independent		Labour
April 1955	George Craddock		Independent		Labour
April 1955	Ernest Fernyhough		Independent		Labour
April 1955	Emrys Hughes		Independent		Labour
April 1955	Sydney Silverman		Independent		Labour
April 1955	Victor Yates		Independent		Labour
April 1955	John McGovern		Independent		Labour
28 April 1955	Aneurin Bevan		Independent		Labour
1955–1959 Parliament
8 November 1956	Colonel Cyril Banks		Conservative		Independent	Resigned whip over the Suez Crisis (Banks was friendly with Egypt). The whip was restored on 19 December 1958.
13 May 1957	The Hon. Patrick Maitland		Conservative		Independent	Resigned whip over the Suez Crisis, wanting UK involvement in Suez to continue (whip restored 23 December 1957)
13 May 1957	John Biggs-Davison		Conservative		Independent	Resigned whip over the Suez Crisis, wanting UK involvement in Suez to continue (whip restored 11 July 1958)
13 May 1957	Anthony Fell		Conservative		Independent	Resigned whip over the Suez Crisis, wanting UK involvement in Suez to continue (whip restored 11 July 1958)
13 May 1957	Viscount Hinchingbrooke		Conservative		Independent	Resigned whip over the Suez Crisis, wanting UK involvement in Suez to continue (whip restored 11 July 1958)
13 May 1957	Lawrence Turner		Conservative		Independent	Resigned whip over the Suez Crisis, wanting UK involvement in Suez to continue (whip restored 11 July 1958)
13 May 1957	Paul Williams		Conservative		Independent	Resigned whip over the Suez Crisis, wanting UK involvement in Suez to continue (whip restored 11 July 1958)
13 May 1957	Angus Maude		Conservative		Independent	Resigned whip over the Suez Crisis, wanting UK involvement in Suez to continue and subsequently resigned their seat.
13 May 1957	Sir Victor Raikes		Conservative		Independent	Resigned whip over the Suez Crisis, wanting UK involvement in Suez to continue and subsequently resigned their seat.
14 November 1957	Sir Frank Medlicott		Conservative		Independent	Resigned whip over the Suez Crisis (Medlicott was opposed to the invasion). Whip restored 21 November 1958.
30 January 1959	Sir David Robertson		Conservative		Independent	Resigned whip over policy on the Scottish highlands.
1959–1964 Parliament
16 March 1961	William Baxter		Labour		Independent	Whip withdrawn for voting against the Army estimates.
16 March 1961	S. O. Davies		Labour		Independent	Whip withdrawn for voting against the Army estimates.
16 March 1961	Michael Foot		Labour		Independent	Whip withdrawn for voting against the Army estimates.
16 March 1961	Emrys Hughes		Labour		Independent	Whip withdrawn for voting against the Army estimates.
16 March 1961	Sydney Silverman		Labour		Independent	Whip withdrawn for voting against the Army estimates.
22 March 1961	Alan Brown		Labour		Independent	Opposed to party defence policy.
22 March 1961	Konni Zilliacus		Labour		Independent	Whip suspended until January 1962 for writing critical article in Communist publication.
19 October 1961	Sir William Duthie		Conservative		Independent	Resigned whip over policy on salmon fishing industry. The whip was restored on 15 November 1963.
4 May 1962	Alan Brown		Independent		Conservative
23 January 1964	Dr Donald Johnson		Conservative		Independent	Dispute with local party.
1964–1966 Parliament
1964	Joan Vickers		Liberal National		Conservative	Party disbanded
1966–1970 Parliament
10 July 1966	Geoffrey Hirst		Conservative		Independent Conservative	Failed to persuade party to vote against Prices and Incomes Bill.
8 December 1966	Reginald Paget		Labour		Independent	Resigned the whip because of opposition to United Nations sanctions on Rhodesia. The whip was restored on 15 June 1967.
1966	Sir Julian Ridsdale		Liberal National		Conservative	Party disbanded
1966	David Renton		Liberal National		Conservative	Party disbanded
1968	Sir John Nott		Liberal National		Conservative	Party disbanded
18 January 1968	Desmond Donnelly		Labour		Independent	Opposed to defence cuts 'east of Suez', later joined the Conservative Party.
31 January 1968	Frank Allaun		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968. All the MPs had abstained on 18 January 1968 on a vote on spending cuts; All listed below were also suspended
31 January 1968	Norman Atkinson		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Albert Booth		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	James Dickens		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	S. O. Davies		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Michael Foot		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Will Griffiths		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Dr John Dunwoody		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Eric Heffer		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Willie Hamilton		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Emrys Hughes		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Peter Jackson		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Anne Kerr		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Russell Kerr		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Malcolm Macmillan		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	John Mendelson		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Stanley Newens		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Christopher Norwood		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Stan Orme		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Trevor Park		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	John Ryan		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Sydney Silverman		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Tom Swain		Labour		Independent Labour	Whip suspended from 31 January 1968 to 29 February 1968.
31 January 1968	Carol Johnson		Labour		Independent Labour	Had abstained in protest at the Whips' lack of disciplinary action.
1970–1974 Parliament
24 August 1970	Gerry Fitt		Republican Labour		SDLP	Formed new party.
30 September 1971	Ian Paisley		Protestant Unionist		DUP	Protestant Unionists merged into new party.
16 February 1972	Ray Gunter		Labour		Independent Labour	Opposed to take-over of party by middle-class intellectuals.
6 October 1972	Dick Taverne		Labour		Democratic Labour	Dispute with local party. Simultaneously resigned seat to seek re-election.
29 April 1973	Stratton Mills		Conservative		Alliance
1974 Parliament
9 July 1974	Christopher Mayhew		Labour		Liberal	Believed Labour was too vulnerable to left takeover.
1974–1979 Parliament
11 October 1975	John Dunlop		Vanguard		UUUP	Split with leadership over proposal for voluntary power-sharing in Northern Ireland.
1975	James Kilfedder		UUP		Independent Unionist	Opposed to the growth of support for the full integration of Northern Ireland into the United Kingdom, remained committed to devolution.
19 November 1975	Robert Bradford		Vanguard		UUP	Opposed to power-sharing.
7 April 1976	John Stonehouse		Labour		Independent	Believed new Prime Minister James Callaghan did not have a mandate.
14 April 1976	John Stonehouse		Independent		English National
26 July 1976	Jim Sillars		Labour		Scottish Labour	Formed rebel party earlier; resigned Labour whip over public spending cuts.
26 July 1976	John Robertson		Labour		Scottish Labour	Formed rebel party earlier; resigned Labour whip over public spending cuts.
8 October 1977	Reg Prentice		Labour		Conservative	Believed Labour should be defeated at the next election.
26 November 1977	William Craig		Vanguard		UUP	Party wound up.
1979–1983 Parliament
24 August 1979	Gerry Fitt		SDLP		Independent Socialist	Dispute with party over talks process.
17 January 1980	James Kilfedder		Independent Unionist		Ulster Progressive Unionist Party	Formed party (renamed 'Ulster Popular Unionist Party' in March 1980).
20 February 1981	Richard Crawshaw		Labour		Social Democratic	Resigned whip prior to launch of new party, which he joined on 2 March 1981.
20 February 1981	Tom Ellis		Labour		Social Democratic	Resigned whip prior to launch of new party, which he joined on 2 March 1981.
2 March 1981	Tom Bradley		Labour		Social Democratic	Formed new party.
2 March 1981	John Cartwright		Labour		Social Democratic	Formed new party.
2 March 1981	John Horam		Labour		Social Democratic	Formed new party.
2 March 1981	Robert Maclennan		Labour		Social Democratic	Formed new party.
2 March 1981	John Roper		Labour		Social Democratic	Formed new party.
2 March 1981	David Owen		Labour		Social Democratic	Formed new party.
2 March 1981	Bill Rodgers		Labour		Social Democratic	Formed new party.
2 March 1981	Neville Sandelson		Labour		Social Democratic	Formed new party.
2 March 1981	Mike Thomas		Labour		Social Democratic	Formed new party.
2 March 1981	Ian Wrigglesworth		Labour		Social Democratic	Formed new party.
16 March 1981	Christopher Brocklebank-Fowler		Conservative		Social Democratic	Formed new party
19 March 1981	Edward Lyons		Labour		Social Democratic
4 July 1981	James Wellbeloved		Labour		Social Democratic
7 September 1981	Michael O'Halloran		Labour		Social Democratic
1 October 1981	Dr Dickson Mabon		Labour		Social Democratic
5 October 1981	Bob Mitchell		Labour		Social Democratic
6 October 1981	David Ginsburg		Labour		Social Democratic
7 October 1981	James Dunn		Labour		Social Democratic
7 October 1981	Tom McNally		Labour		Social Democratic
29 October 1981	Eric Ogden		Labour		Social Democratic
16 November 1981	John Grant		Labour		Social Democratic
30 November 1981	George Cunningham		Labour		Independent Labour
2 December 1981	Ronald Brown		Labour		Social Democratic
11 December 1981	Bruce Douglas-Mann		Labour		Independent Labour	Subsequently resigned his seat and restood unsuccessfully for the Social Democratic Party.
11 December 1981	Jeffrey Thomas		Labour		Social Democratic
22 December 1981	Ednyfed Hudson Davies		Labour		Social Democratic
22 January 1982	Bryan Magee		Labour		Independent Labour
March 1982	Bryan Magee		Independent Labour		Social Democratic
16 June 1982	George Cunningham		Independent Labour		Social Democratic
2 August 1982	Robert Mellish		Labour		Independent Labour	Dispute with local party.
10 February 1983	Michael O'Halloran		Social Democratic		Independent Labour	Not selected as a candidate for the subsequent election.
1983–1987 Parliament
31 January 1987	John Ryman		Labour		Independent
1987–1992 Parliament
19 May 1988	Ron Brown		Labour		Independent	Whip suspended until 19 August 1988 over misconduct.
19 August 1988	Ron Brown		Independent		Labour	Whip suspended over misconduct.
14 March 1990	Dick Douglas		Labour		Independent	Opposed to party acquiescence in administering the Poll Tax.
4 October 1990	Dick Douglas		Independent		SNP
25 September 1991	Dave Nellist		Labour		Independent	Whip suspended over links to the Militant tendency.
25 September 1991	Terry Fields		Labour		Independent	Whip suspended over links to the Militant tendency.
13 March 1992	John Browne		Conservative		Independent Conservative	Whip removed for intention to stand against official candidate after he had been deselected.
1992–1997 Parliament
23 July 1993	Rupert Allason		Conservative		Independent Conservative	Whip suspended until 28 July 1994 after failing to back Conservative government in confidence motion.
29 November 1994	Sir Nicholas Budgen		Conservative		Independent Conservative	Whip suspended until 24 April 1995 after failing to back Conservative government in confidence motion.
29 November 1994	Michael Carttiss		Conservative		Independent Conservative	Whip suspended until 24 April 1995 after failing to back Conservative government in confidence motion.
29 November 1994	Christopher Gill		Conservative		Independent Conservative	Whip suspended until 24 April 1995 after failing to back Conservative government in confidence motion.
29 November 1994	Teresa Gorman		Conservative		Independent Conservative	Whip suspended until 24 April 1995 after failing to back Conservative government in confidence motion.
29 November 1994	Antony Marlow		Conservative		Independent Conservative	Whip suspended until 24 April 1995 after failing to back Conservative government in confidence motion.
29 November 1994	Richard Shepherd		Conservative		Independent Conservative	Whip suspended until 24 April 1995 after failing to back Conservative government in confidence motion.
29 November 1994	Sir Teddy Taylor		Conservative		Independent Conservative	Whip suspended until 24 April 1995 after failing to back Conservative government in confidence motion.
29 November 1994	John Wilkinson		Conservative		Independent Conservative	Whip suspended until 24 April 1995 after failing to back Conservative government in confidence motion.
29 November 1994	Sir Richard Body		Conservative		Independent Conservative	Resigned whip in protest at the treatment of the eight MPs who abstained. Restored on 17 January 1996.
8 October 1995	Alan Howarth		Conservative		Labour
30 December 1995	Emma Nicholson		Conservative		Liberal Democrat
24 February 1996	Peter Thurnham		Conservative		Independent
12 October 1996	Peter Thurnham		Independent		Liberal Democrat
8 March 1997	Sir George Gardiner		Conservative		Referendum	Deselected by local Conservative association.
1997–2001 Parliament
21 November 1997	Peter Temple-Morris		Conservative		Independent 'One Nation Conservative'	Whip removed due to questioned commitment to the Party.
21 June 1998	Peter Temple-Morris		Independent 'One Nation Conservative'		Labour
9 September 1998	Tommy Graham		Labour		Independent 'Scottish Labour'	Expelled from Party over misconduct.
26 March 1999	Dennis Canavan		Labour		Independent	Expelled from Party after decision to stand for Scottish Parliament against official candidate.
18 December 1999	Shaun Woodward		Conservative		Labour	Direction of party under William Hague
6 March 2000	Ken Livingstone		Labour		Independent	Expelled from Party after decision to stand for Mayor of London against official candidate.
11 April 2001	Charles Wardle		Conservative		Independent	Whip removed after rumours of support for Independent candidate in forthcoming general election.
2001–2005 Parliament
10 December 2001	Paul Marsden		Labour		Liberal Democrat	Left Labour over the war in Afghanistan. First Labour MP to join the Liberal Democrats since they were created.
2 October 2002	Andrew Hunter		Conservative		Independent Conservative	Resigned whip in order to ally with the Democratic Unionist Party in Northern Ireland.
23 June 2003	David Burnside		UUP		Independent Unionist	Resigned whip over opposition to the Belfast Agreement. Accepted the whip back on 9 January 2004.
2 October 2003	Rev. Martin Smyth		UUP		Independent Unionist	Resigned whip over opposition to the Belfast Agreement. Accepted the whip back on 9 January 2004.
2 October 2003	Jeffrey Donaldson		UUP		Independent Unionist	Resigned whip over opposition to the Belfast Agreement.
23 October 2003	George Galloway		Labour		Independent	Expelled from Party.
5 January 2004	Jeffrey Donaldson		Independent Unionist		DUP
25 January 2004	George Galloway		Independent		Respect
25 January 2004	Ann, Lady Winterton		Conservative		Independent	Whip suspended over misconduct.
31 March 2004	Ann, Lady Winterton		Independent		Conservative
10 December 2004	Andrew Hunter		Independent Conservative		DUP
15 January 2005	Robert Jackson		Conservative		Labour	Disagreement with party over higher education funding.
3 February 2005	Jonathan Sayeed		Conservative		Independent	Whip suspended until 7 March 2005 over misconduct.
7 March 2005	Jonathan Sayeed		Independent		Conservative	.
18 March 2005	Jonathan Sayeed		Conservative		Independent	Whip withdrawn over misconduct.
25 March 2005	Howard Flight		Conservative		Independent	Whip withdrawn over controversial policy remarks.
6 April 2005	Paul Marsden		Liberal Democrat		Independent Labour	Declared support for Labour Party to win the impending general election.
25 April 2005	Brian Sedgemore		Labour		Liberal Democrat	Unhappy with the direction Labour were heading
2005–2010 Parliament
20 October 2006	Clare Short		Labour		Independent	Resigned whip. Declared support for a hung parliament at the next election.
26 June 2007	Quentin Davies		Conservative		Labour	Defected. Criticised the direction of the Conservative Party under leadership of David Cameron.
25 September 2007	Andrew Pelling		Conservative		Independent	Whip suspended pending the conclusion of an investigation into the accusations he assaulted his wife. After sitting as an 'Independent Conservative' for some time, he severed links with the party in October 2008 and designated himself as Independent only.
November 2007	Robert Wareing		Labour		Independent	Resigned whip after failing in a bid for reselection. Initially declared he would stand as an Independent candidate.
29 January 2008	Derek Conway		Conservative		Independent	Whip suspended pending the conclusion of an investigation into the accusations he misused his Parliamentary Allowances.
12 March 2008	Bob Spink		Conservative		Independent	Resigned the party and announced this on the floor of the house. Conservatives subsequently tried to suspend the whip which Spink had already resigned following disagreement with party policy and the 'dubious' activities of his local party
22 April 2008	Bob Spink		Independent		UKIP	Having previously resigned the Conservative whip, Spink apparently joined United Kingdom Independence Party (UKIP) on 22 April 2008, thus becoming that party's first MP.
Unknown, before April 2009	Bob Spink		UKIP		Independent
9 January 2010	Iris Robinson		DUP		Independent	Was expelled from the DUP and subsequently stood down as an MP on the 13th
8 February 2010	David Chaytor		Labour		Independent	Whip suspended over the United Kingdom Parliamentary expenses scandal after criminal charges of false accounting were brought.
8 February 2010	Jim Devine		Labour		Independent	Whip suspended over the United Kingdom Parliamentary expenses scandal after criminal charges of false accounting were brought.
8 February 2010	Elliot Morley		Labour		Independent	Whip suspended over the United Kingdom Parliamentary expenses scandal after criminal charges of false accounting were brought.
25 March 2010	Sylvia, Lady Hermon		UUP		Independent	Resigned from party to fight for re-election as an Independent in opposition to the electoral pact between the Ulster Unionists and the Conservative Party.
2010-2015 Parliament
19 May 2010	Eric Illsley		Labour		Independent	Whip suspended over the United Kingdom Parliamentary expenses scandal after criminal charges of false accounting were brought.
14 October 2010	Denis MacShane		Labour		Independent	Whip suspended over the United Kingdom Parliamentary expenses scandal
23 February 2012	Eric Joyce		Labour		Independent	Whip suspended after drunkenly assaulting fellow politicians on the parliamentary estate
5 July 2012	Denis MacShane		Independent		Labour	Retakes the Whip after Police decide not prosecute over the United Kingdom Parliamentary expenses scandal
2 November 2012	Denis MacShane		Labour		Independent	Whip suspended after a Parliamentary committee found that he had submitted 19 false invoices for expenses that were "plainly intended to deceive" during the United Kingdom Parliamentary expenses scandal
6 November 2012	Nadine Dorries		Conservative		Independent	Had the whip removed after taking part in I'm a Celebrity...Get Me Out of Here!
8 May 2013	Nadine Dorries		Independent		Conservative	Whip returned
31 May 2013	Patrick Mercer		Conservative		Independent	Resigned the Conservative Party whip on the 31 May 2013 after an ongoing enquiry by the BBC's Panorama programme regarding allegations relating to lobbying.
4 June 2013	Mike Hancock		Liberal Democrat		Independent	Hancock announced that he had temporarily resigned from the Liberal Democrats until a forthcoming court case, involving allegations of sexual offences made against him, has ended.
19 July 2013	David Ward		Liberal Democrat		Independent	Whip withdrawn over anti Israel remarks.
10 September 2013	Nigel Evans		Conservative		Independent	On 10 September 2013 it was announced that he was to be charged with eight sexual offences which include rape and sexual assault, allegedly committed between January 2002 and April 2013. The following day he announced his resignation as deputy speaker and denied any wrongdoing. He also announced that he would continue to sit as a backbench MP, but would not take the Conservative whip.
19 September 2013	David Ward		Independent		Liberal Democrat	Received whip back
10 April 2014	Nigel Evans		Independent		Conservative	Found not guilty on all charges, so returned to the Conservative benches
28 August 2014	Douglas Carswell		Conservative		UKIP	Defected and resigned as MP, triggering by-election which he won.
27 September 2014	Mark Reckless		Conservative		UKIP	Defected and resigned as MP, triggering by-election which he won.
22 February 2015	Jack Straw		Labour		Independent	Suspended from the party and whip withdrawn after being secretly filmed apparently offering their services to a private company for cash.
23 February 2015	Sir Malcolm Rifkind		Conservative		Independent	Suspended from the party and whip withdrawn after being secretly filmed apparently offering their services to a private company for cash.
2015-2020 Parliament
29 September 2015	Michelle Thomson		SNP		Independent	Resigned whip over allegations of mortgage fraud.
24 November 2015	Natalie McGarry		SNP		Independent	Resigned whip while being investigated in relation to funds going missing from the accounts of Women for Independence.
28 December 2015	Simon Danczuk		Labour		Independent	Suspended from the Labour Party following allegations of sending sexually explicit text messages to a 17-year-old girl.
27 April 2016	Naz Shah		Labour		Independent	Suspended from the Labour Party following allegations of making anti-semitic remarks.

List of Members of Parliament who were suspended from their parliamentary party

These MPs were suspended by their Parliamentary Parties but continued to receive the Whip.

Date	Member	Party		Notes
22 March 2010	Patricia Hewitt		Labour	Suspended over the allegations from the 2010 Cash for Influence Scandal
22 March 2010	Geoff Hoon		Labour	Suspended over the allegations from the 2010 Cash for Influence Scandal
22 March 2010	Stephen Byers		Labour	Suspended over the allegations from the 2010 Cash for Influence Scandal
22 March 2010	Margaret Moran		Labour	Suspended over the allegations from the 2010 Cash for Influence Scandal
5 November 2010	Phil Woolas		Labour	Suspended after being found to have breached the Representation of the People Act 1983; his 2010 general election victory was declared void and he was barred from holding public office for 3 years;

List of Members of the House of Lords who have crossed the floor

Date	Member	Beforef			Tory
1802	Edward Law, 1st Baron Ellenborough		Whig		Tory
1812	George James Cholmondeley, 4th Earl of Cholmondeley		Whig		Tory
1830	Ulick de Burgh, 1st Marquess of Clanricarde		Tory		Whig
1834	Francis Conyngham, 2nd Marquess Conyngham		Tory		Whig
1834	Charles Gordon-Lennox, 5th Duke of Richmond		Whig		Conservative	Resigned as Postmaster General
1834	Frederick Robinson, 1st Earl of Ripon		Whig		Conservative	Resigned as Lord Privy Seal
1846	Edward Eliot, 3rd Earl of St Germans		Conservative		Whig
1884	Lawrence Dundas, 1st Marquess of Zetland		Whig		Conservative
1886	Edward Stanley, 15th Earl of Derby		Liberal		Liberal Unionist
1886	Charles Pelham, 4th Earl of Yarborough		Liberal		Liberal Unionist
1886	Spencer Cavendish, 8th Duke of Devonshire		Liberal		Liberal Unionist
1886	Francis Russell, 9th Duke of Bedford		Liberal		Liberal Unionist
1886	Chichester Parkinson-Fortescue, 1st Baron Carlingford		Liberal		Liberal Unionist
1886	Richard de Aquila Grosvenor, 1st Baron Stalbridge		Liberal		Liberal Unionist
1886	Thomas Baring, 1st Earl of Northbrook		Liberal		Liberal Unionist
1886	Edward Hyde Villiers, 5th Earl of Clarendon		Liberal		Liberal Unionist
1886	Hugh Grosvenor, 1st Duke of Westminster		Liberal		Liberal Unionist
1886	Francis Russell, 9th Duke of Bedford		Liberal		Liberal Unionist
1886	Roundell Palmer, 1st Earl of Selborne		Liberal		Liberal Unionist
1886	Albert Parker, 3rd Earl of Morley		Liberal		Liberal Unionist
1886	Richard Dawson, 1st Earl of Dartrey		Liberal		Liberal Unionist
1886	Thomas Spring Rice, 2nd Baron Monteagle of Brandon		Liberal		Liberal Unionist
1886	George Campbell, 8th Duke of Argyll		Liberal		Independent
1895	Henry Petty-Fitzmaurice, 5th Marquess of Lansdowne		Liberal		Liberal Unionist
1902	Spencer Cavendish, 8th Duke of Devonshire		Liberal Unionist		Conservative
1904	Ivor Guest, 1st Baron Wimborne		Conservative		Liberal
1905	Henry Petty-Fitzmaurice, 5th Marquess of Lansdowne		Liberal Unionist		Conservative
1920	John Wodehouse, 2nd Earl of Kimberley		Liberal		Labour	First Labour Peer
1923	Richard Haldane, 1st Viscount Haldane		Liberal		Labour	Later served as Lord Chancellor in the First MacDonald ministry.
1924	Charles Cripps, 1st Baron Parmoor		Liberal		Labour	To serve as Lord President of the Council in the First MacDonald ministry.
1945	Frederick James Marquis, 1st Earl of Woolton		Independent		Conservative
1947	Charles Kerr, 1st Baron Teviot		Liberal National		Conservative
1959	David Rees Rees-Williams, 1st Baron Ogmore		Labour		Liberal
1975	Alan Mais, Baron Mais		Labour		Liberal
1979	Alfred Robens, Baron Robens of Woldingham		Labour		Conservative	In later life became aligned with the Conservatives after becoming unhappy with how left wing the Labour Party was heading.
1979	Alun Jones, Baron Chalfont		Labour		Independent
1979	Richard Marsh, Baron Marsh		Labour		Independent
1981	George Brown, Baron George-Brown		Labour		Social Democratic
1981	Elaine Burton, Baroness Burton of Coventry		Labour		Social Democratic
1981	John Diamond, Baron Diamond		Labour		Social Democratic
1981	Walter Perry, Baron Perry of Walton		Labour		Social Democratic
1982	John Edward Poynder Grigg, 2nd Baron Altrincham		Conservative		Social Democratic
1982	Wayland Hilton Young, 2nd Baron Kennet		Labour		Social Democratic
1982	Martin Attlee, 2nd Earl Attlee		Labour		Social Democratic
1982	Herbert Bowden, Baron Aylestone		Labour		Social Democratic
1982	Phyllis Stedman, Baroness Stedman		Labour		Social Democratic
1982	George Thomson, Baron Thomson of Monifieth		Labour		Social Democratic
1982	Henry Wilson, Baron Wilson of Langside		Labour		Social Democratic
1988	Phyllis Stedman, Baroness Stedman		Social Democratic		Independent	Opposed the SDPs merger with the Liberals and so created the Social Democratic Party (UK, 1988)
1992	Robert Skidelsky, Baron Skidelsky		Social Democratic		Conservative
1995	John Diamond, Baron Diamond		Social Democratic		Labour
1997	David Alton, Baron Alton of Liverpool		Liberal Democrat		Independent	Was unhappy with the pro-choice stance of certain colleagues
1997	John Attlee, 3rd Earl Attlee		Independent		Conservative	Grandson of Labour Prime Minister Clement Attlee
1997	Vere Harmsworth, 3rd Viscount Rothermere		Conservative		Labour	Over the parties policies
1998	David Hacking, 3rd Baron Hacking		Conservative		Labour	Over the parties European policies
1998	Hugh Thomas, Baron Thomas of Swynnerton		Conservative		Liberal Democrat	Over the parties policies
1998	Cherry Drummond, 16th Baroness Strange		Conservative		Independent	Over reduction in the number of hereditary peers
1999	Timothy Beaumont, Baron Beaumont of Whitley		Liberal Democrat		Green	The Green Party's first peer.
2000	Barbara Young, Baroness Young of Old Scone		Labour		Independent	Became a crossbencher after taking up an appointment as Chief Executive of Environment Agency
2000	Lord Archer of Weston-super-Mare		Conservative		Independent	Expelled from party and jailed for perjury and perverting the course of justice.
1992	Robert Skidelsky, Baron Skidelsky		Conservative		Independent
2002	David Stoddart, Baron Stoddart of Swindon		Labour		Independent	Expelled for backing a Socialist Alliance candidate instead of Labour
2004	Edward Haughey, Baron Ballyedmond		UUP		Conservative
30 May 2004	Lord Pearson of Rannoch		Conservative		Independent	Expelled from Party for backing UKIP
30 May 2004	Leopold Verney, 21st Baron Willoughby de Broke		Conservative		Independent	Expelled from Party for backing UKIP
30 May 2004	David Robert Stevens, Baron Stevens of Ludgate		Conservative		Independent	Expelled from Party for backing UKIP
30 May 2004	Baroness Cox		Conservative		Independent	Expelled from Party for backing UKIP
23 September 2005	Christopher Haskins, Baron Haskins		Labour		Independent	Expelled for donating £2,500 to Liberal Democrats
2005	Mike Watson, Baron Watson of Invergowrie		Labour		Independent	Expelled from the Party after being imprisoned for causing a fire
2007	Lord Black of Crossharbour		Conservative		Independent	Expelled from the party after being convicted of fraud in a US court in 2007 and sentenced to six and a half years' imprisonment.
2007	David Trimble, Baron Trimble		UUP		Conservative
7 January 2007	Lord Pearson of Rannoch		Independent		UKIP	Joined UKIP
7 January 2007	Leopold Verney, 21st Baron Willoughby de Broke		Independent		UKIP	Joined UKIP
25 February 2009	Nazir Ahmed, Baron Ahmed		Labour		Independent	Expelled from Party after conviction for dangerous driving.
20 May 2009	Thomas Taylor, Baron Taylor of Blackburn		Labour		Independent	Whip withdrawn and suspended from party over Cash for Influence. First Peers suspended from the House of Lords since the 17th Century.
20 May 2009	Lord Truscott		Labour		Independent	Whip withdrawn and suspended from party over Cash for Influence and later quit party. First Peers suspended from the House of Lords since the 17th Century.
5 February 2010	Paul White, Baron Hanningfield		Conservative		Independent	He stepped down from his frontbench role and was charged with two alleged offences under section 17 of the Theft Act 1968 ("false accounting"). This is due to United Kingdom Parliamentary expenses scandal
16 July 2010	John Taylor, Baron Taylor of Warwick		Conservative		Independent	Resigned from party and was charged with six counts of false accounting. This is due to United Kingdom Parliamentary expenses scandal
18 October 2010	Pola Uddin, Baroness Uddin		Labour		Independent	Instructed to repay £125,349 as well as being suspended from Parliament until the end of the present session of Parliament; see United Kingdom Parliamentary expenses scandal.
18 October 2010	Swraj Paul, Baron Paul		Labour		Independent	Instructed to repay £41,982 as well as being suspended from Parliament for four months; see United Kingdom Parliamentary expenses scandal. Resigned from the party.
18 October 2010	Amir Bhatia, Baron Bhatia		Labour		Independent	Instructed to repay £27,446 as well as being suspended from Parliament for eight months; see United Kingdom Parliamentary expenses scandal.
6 February 2011	Anthony Jacobs, Baron Jacobs		Liberal Democrat		Independent	Due to opposition to party policies on taxation.
6 February 2011	Lucius Cary, 15th Viscount Falkland		Liberal Democrat		Independent	Due to opposition to direction of the party
23 February 2012	Jenny Tonge, Baroness Tonge		Liberal Democrat		Independent	Quit the party rather than apologise due to strong criticisms of Israel.
16 April 2012	Nazir Ahmed, Baron Ahmed		Labour		Independent	Suspended after allegedly calling for a £10 million bounty for the capture of President of the United States Barack Obama and former President of the United States George W. Bush. Subsequently revealed comments were not made
30 June 2012	Nazir Ahmed, Baron Ahmed		Independent		Labour	Suspension lifted after investigation clears Ahmed.
June 2012	Ken Maginnis, Baron Maginnis of Drumglass		UUP		Independent	In June 2012, the UUP Whip was withdrawn from Maginnis by party leader Mike Nesbitt over his anti-gay remarks. Maginnis subsequently resigned from the UUP on 28 August 2012.
July 2012	Mike Watson, Baron Watson of Invergowrie		Independent		Labour	Re-admitted to the Labour Party.
18 September 2012	Lord Stevens of Ludgate		Independent		UKIP	Joined UKIP
14 March 2013	Nazir Ahmed, Baron Ahmed		Labour		Independent	Suspended for alleged antisemitism
1 June 2013	Brian Mackenzie, Baron Mackenzie of Framwellgate		Labour		Independent	In 2013, it is alleged that Mackenzie offered to lobby for a firm in return for cash against parliamentary rules. He was consequently suspended from the Labour Party pending an inquiry
1 June 2013	Jack Cunningham, Baron Cunningham of Felling		Labour		Independent	In 2013, it is alleged that Cunningham offered to lobby for a firm in return for cash against parliamentary rules. He was consequently suspended from the Labour Party pending an inquiry
1 June 2013	John Laird, Baron Laird		UUP		Independent	In 2013, it is alleged that Laird offered to lobby for a firm in return for cash against parliamentary rules. He subsequently resigned the UUP Whip.
20 January 2014	Chris Rennard, Baron Rennard		Liberal Democrat		Independent	Suspended from the party for refusing to apologise over sexual assault claims against him.
20 August 2014	Chris Rennard, Baron Rennard		Independent		Liberal Democrat	Re admitted to the Liberal Democrats
21 March 2015	Paul Strasburger, Baron Strasburger		Liberal Democrat		Independent	Resigned over donor allegations
21 March 2015	Qurban Hussain, Baron Hussain		Liberal Democrat		Independent	Resigned after illegally bringing a child into the UK from Pakistan
27 July 2015	John Sewel, Baron Sewel		Labour		Independent	Had the whip withdrawn following newspaper reports of involvement in an orgy featuring prostitutes and cocaine.
4 October 2015	Andrew Adonis, Baron Adonis		Labour		Independent	Relinquished the Labour whip while heading a commission on major infrastructure projects.
19 October 2015	Norman Warner, Baron Warner		Labour		Independent	Resigned from the Labour Party in protest at the direction the party was heading under Jeremy Corbyn.
24 October 2015	Anthony Grabiner, Baron Grabiner		Labour		Independent	Resigned from the Labour Party in protest at the direction the party was heading under Jeremy Corbyn.

List of Members of the European Parliament who have crossed the floor

Date	Member	Before		After		Notes
1979–1984 Parliament
1984	Michael Gallagher		Labour		Social Democratic	He was the Social Democrats' only MEP
1994–1999 Parliament
1997	Ken Coates		Labour		Scottish Socialist	Expelled from the Labour Party
1997	Hugh Kerr		Labour		Scottish Socialist	Expelled from the Labour Party
1998	James Moorhouse		Conservative		Liberal Democrat	Defects after being de-selected
1998	Brendan Donnelly		Conservative		Pro-Euro Conservative	Later joined the Lib-Dems
1998	John Stevens		Conservative		Pro-Euro Conservative	Later joined the Lib-Dems
6 May 1999	Christine Oddy		Labour		Independent	Expelled from the Labour Party
1999–2004 Parliament
2000	Michael Holmes		UKIP		Independent	Resigned from party
2000	Bill Newton Dunn		Conservative		Liberal Democrat	Felt that the Conservatives were increasingly negative towards the prospect of Britain playing a leading role in Europe
2002	Richard Balfe		Labour		Conservative	Had been expelled from the Labour Party for standing for the post of quaestor
2004–2009 Parliament
2004	Robert Kilroy-Silk		UKIP		Veritas	Created new party
2004	Ashley Mote		UKIP		Independent	Expelled whilst pending fraud trial
2007	Tom Wise		UKIP		Independent	Expelled whilst pending fraud trial
2007	Jim Allister		DUP		TUV	Created new party
2007	Sajjad Karim		Liberal Democrat		Conservative	Joined Conservatives because he was 'impressed by David Cameron's stance on immigration'
2008	Den Dover		Conservative		Independent	Expelled from the Conservatives
2009–2014 Parliament
September 2009	Edward McMillan-Scott		Conservative		Independent	Expelled from the Conservatives for opposing the creation by the Conservative Party of European Conservatives and Reformists, alleging far-right extremism in the group
January 2010	Nikki Sinclaire		UKIP		Independent	Expelled from UKIP for refusal to sit with UKIP's Europe of Freedom and Democracy group, which she alleged had far-right and extremist elements
March 2010	Edward McMillan-Scott		Independent		Liberal Democrat	Cited support for Nick Clegg and internationalist agenda of the party
May 2011	David Campbell Bannerman		UKIP		Conservative	Joined the Conservatives after claiming UKIP was not a 'credible political force'
March 2012	Roger Helmer		Conservative		UKIP	Quit the Conservative Party due to believing that UKIP represented Conservative Values
16 October 2012	Andrew Brons		BNP		Independent	Resigned from the BNP, alleging "constructive dismissal"
February 2013	Marta Andreasen		UKIP		Conservative	Joined the Conservatives after describing leader Nigel Farage as "a Stalinist" who was "anti-women"
September 2013	Mike Nattrass		UKIP		Independent	Nattrass failed a candidate assessment test in August 2013 and was deselected by the party for the 2014 European election. He took the party to court over the decision, but lost. He left UKIP in September 2013.
September 2013	Godfrey Bloom		UKIP		Independent	On 20 September 2013, during the party conference, UKIP withdrew the whip from Bloom. At a party conference meeting he had jokingly referred to his female audience as "sluts". Subsequently, he assaulted journalist Michael Crick in the street by hitting him over the head with the conference brochure, reportedly threatened violence to ITV reporter, Paul Brand, by saying, "You treat me badly, you'll get a lot worse than that (Crick's slap) ... that is a threat to any journalist."
2014–2019 Parliament
January 24, 2015	Amjad Bashir		UKIP		Conservative	Joined the Conservatives after being suspended from UKIP due to allegations of impropriety.
March 20, 2015	Janice Atkinson		UKIP		Independent	Expelled from UKIP due to allegations of impropriety

List of London Assembly Members who have crossed the floor

Date	Member	Before		After		Notes
2004–2008 Assembly
September 2005	Damian Hockney		UKIP		One London	First joined Veritas then created new party One London
September 2005	Peter Hulme-Cross		UKIP		One London	First joined Veritas then created new party One London
2008–2012 Assembly
2010	Richard Barnbrook		BNP		Independent	Expelled from the BNP

List of Members of the Welsh Assembly who have crossed the floor

Date	Member	Before		After		Notes
1999–2003 Assembly
2000	Rod Richards		Conservative		Independent Conservative	Whip withdrawn after abstaining on a budget vote
2003–2007 Assembly
2005	Peter Law		Labour		Independent	Left party in protest at the use of all-woman shortlists
2007–2011 Assembly
2009	Mohammad Asghar		Plaid Cymru		Conservative	Explained that he was a "Unionist" and against Welsh independence, First AM to defect and first ethnic minority and Muslim member of the Assembly also Wales' first Muslim Councillor
2010	Mick Bates		Liberal Democrat		Independent	Suspended after it was discovered that he will be prosecuted for assault

List of Members of the Scottish Parliament who have crossed the floor

Date	Member	Before		After		Notes
1999–2003 Parliament
2002	Dorothy-Grace Elder		SNP		Independent	Left the party and sat as an independent
2003	Margo Macdonald		SNP		Independent	Ranked low on the party list for re-election so stood as an independent and was expelled from party; re-elected as an independent
2003–2007 Parliament
2004	Campbell Martin		SNP		Independent	Expelled from party and stood as an independent
2005	Mike Watson, Baron Watson of Invergowrie		Labour		Independent	Expelled from the Party after causing a fire and resigned
2005	Brian Monteith		Conservative		Independent	Had whip withdrawn over misconduct
2006	Rosemary Byrne		Scottish Socialist		Solidarity	Created new Party Solidarity
2006	Tommy Sheridan		Scottish Socialist		Solidarity	Created new Party Solidarity
2007-2011 Parliament
2011	Hugh O'Donnell		Liberal Democrats		Independent	Quit party over its direction
2011–2016 Parliament
April 2012	Bill Walker		SNP		Independent	Expelled from the SNP for allegedly not declaring the allegations cited in his uncontested divorce proceedings during the MSP vetting process.
October 2012	John Finnie		SNP		Independent	Resigned from the SNP on 23 October 2012 over the party's decision to support Nato membership for an independent Scotland.
October 2012	Jean Urquhart		SNP		Independent	Resigned from the SNP on 23 October 2012 over the party's decision to support Nato membership for an independent Scotland.
September 2014	John Wilson		SNP		Independent	Resigned from the SNP in 2014 over the party's decision to support Nato membership for an independent Scotland.
October 2014	John Finnie		Independent		Scottish Green	Joined the Scottish Green Party, but still sits as an Independent MSP
December 2014	John Wilson		Independent		Scottish Green	Joined the Scottish Green Party, but still sits as an Independent MSP

List of Members of the Northern Ireland Assembly who have crossed the floor

Date	Member	Before		After		Notes
1998-2003 Assembly
1999	Cedric Wilson		UK Unionist		NI Unionist	Disagreed with UKUP leader Robert McCartney, as they wanted to remain in the Assembly to challenge unionists in favour of the Belfast Agreement
1999	Patrick Roche		UK Unionist		NI Unionist	Disagreed with UKUP leader Robert McCartney, as they wanted to remain in the Assembly to challenge unionists in favour of the Belfast Agreement
1999	Norman Boyd		UK Unionist		NI Unionist	Disagreed with UKUP leader Robert McCartney, as they wanted to remain in the Assembly to challenge unionists in favour of the Belfast Agreement
1999	Roger Hutchinson		UK Unionist		NI Unionist	Disagreed with UKUP leader Robert McCartney, as they wanted to remain in the Assembly to challenge unionists in favour of the Belfast Agreement
2000	Roger Hutchinson		NI Unionist		DUP
2003-2007 Assembly
2003	Jeffrey Donaldson		UUP		DUP
2003	Nora Beare		UUP		DUP
2003	Arlene Foster		UUP		DUP
23 November 2005	Francie Molloy		Sinn Féin		Independent	Suspended from party, after publicly disagreeing with the party policy on eliminating many district councils, including the Dungannon Council of which he was a member.
15 January 2007	Geraldine Dougan		Sinn Féin		Independent	Resigned from party
2 February 2007	Davy Hyland		Sinn Féin		Independent	Resigned from party
2007	Paul Berry		DUP		Independent	Stood as an independent but was not elected
February 2007	George Ennis		DUP		UK Unionist
2007-2011 Assembly
29 November 2007	Gerry McHugh		Sinn Féin		Fianna Fáil	Believed that "Fianna Fáil was the right party to bring about change in Northern Ireland". Although a member of Fianna Fáil, McHugh sat as an Independent.
30 March 2010	Major Alan MacFarland		UUP		Independent	Disagreed with the UUP's electoral pact with the Conservative Party
3 June 2010	Dawn Purvis		PUP		Independent	Disagreed with direction of party
3 January 2011	David McClarty		UUP		Independent	Resigned after being de-selected
2011-2016 Assembly
27 January 2012	David McNarry		UUP		Independent	Suspended from the UUP.
4 October 2012	David McNarry		Independent		UKIP	Joined UKIP.
14 February 2013	Basil McCrea		UUP		NI21	Formed new party
14 February 2013	John McCallister		UUP		NI21	Formed new party
10 July 2014	John McCallister		NI21		Independent	Response to allegations of impropriety against leader Basil McCrea

Bibliography

• David Butler and Gareth Butler, Twentieth Century British Political Facts (Palgrave Macmillan, 2005)

• Liberals: A History of the Liberal and Liberal Democratic Parties By Roy Douglas
• Who's who of British members of parliament
• The Derbyshire miners: a study in industrial and social history
• Gunter wrote to Chief Whip Robert Mellish: "I should be less than human if I did not shrink from being kicked out by the middle-class intellectuals who now control the party. I will go out with some dignity and quietly, I just resign the whip." See "Intellectuals in control of Labour, Mr Gunter says", The Times, 17 February 1972, p. 2.
• "Nadine Dorries reinstated as Conservative MP", BBC News, 8 May 2013
• Maginnis quits UUP, tells Nesbitt to resign, The Newsletter, 28 August 2012
• http://www.mirror.co.uk/news/uk-news/liberal-democrat-peer-qurban-hussain-5379225
• "Godfrey Bloom: UKIP MEP Calls Women 'Sluts'", Sky.com, 20 September 2013
• Rowena Mason "Ukip's Godfrey Bloom has whip removed after 'sluts' remark", theguardian.com, 20 September 2013
• "Thwack! MEP's blunders derail Ukip party conference", Channel 4 News, 20 September 2013
• "Ukip MEP Godfrey Bloom whacks Michael Crick over the head with party brochure", telegraph.co.uk, 20 September 2013