All Floor Crossings

Dennis Drainville

1993

Ontario NDP → IndependentMPPOntario

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Drainville, Ontario NDP MPP for Victoria-Haliburton, quit the NDP caucus to sit as an independent to protest the Rae government's decision to allow casino gambling in Ontario.

McPherson, Saskatchewan NDP MLA, left the NDP to join the Liberals.

Holden represented English-speaking Westmount in a party that fought for English language rights. He crossed to the Parti Québécois - a French-first, pro-independence party. It …

Alex Kindy, a Progressive Conservative MP for Calgary East since 1968, was suspended from the Conservative caucus on April 11, 1990, alongside David Kilgour, for voting against …

John Patrick (Pat) Nowlan

1990

Progressive Conservative → Independent ConservativeMPNova Scotia

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Pat Nowlan, a veteran Progressive Conservative MP for Annapolis Valley—Hants who had served since 1965, left the Conservative caucus in June 1990 over deep disagreements with Br…

Richard Grisé, a Progressive Conservative MP from Quebec's Chambly riding, was effectively expelled from the PC caucus in April 1989 over personal conduct issues that made his c…

Suzanne Blais-Grenier was a Quebec Progressive Conservative MP who had served as Minister of State for the Environment in Brian Mulroney's first cabinet — the first woman to hol…

Toupin left the Conservatives, tried to join the Liberals - but the Liberals said no. He briefly joined the NDP, then sat alone as an independent.

Lupusella, Ontario NDP MPP for Dovercourt, left the NDP to join the Ontario Liberals alongside David Ramsay.

Graham Lea

1985

NDP → BC ConservativeMLABritish Columbia

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Lea, NDP MLA for Prince Rupert and former cabinet minister, left the NDP after losing the 1984 leadership race. He sat briefly with the United Party before joining the BC Conser…

William Yurko, a Progressive Conservative MP for Edmonton East and former Alberta provincial cabinet minister, broke with his party in January 1982 over fundamental disagreement…

Collver, former leader of the Saskatchewan PCs, and fellow MLA Dennis Ham left to form the Unionest Party, which controversially advocated for western Canadian provinces joining…

James Armstrong Richardson

1978Notable

Liberal → IndependentMPManitoba

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Richardson, former Defence Minister, resigned from the Liberal cabinet and caucus over his opposition to official bilingualism and the government's language policies.

René Matte, one of the last remaining Créditiste MPs in the House of Commons, was expelled from what remained of the Social Credit/Créditiste caucus in 1978. By this point, the …

Stanley Stanford Schumacher, a Conservative MP from Palliser in Alberta, left the PC caucus to sit as an Independent in 1978 over a dispute with party leader Joe Clark. Schumach…

Gilbert Rondeau, a Créditiste/Social Credit MP from Quebec, was expelled from the Social Credit caucus around 1977 during the death throes of the Social Credit movement in feder…

Paul Hellyer

1972

Independent → Progressive ConservativeMPOntario

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After leaving the Liberals to sit as an independent in 1971, Hellyer joined the Progressive Conservatives in 1972, hoping to run for the PC leadership.

Raymond Rock

1972

Liberal → New Democratic PartyMPQuebec

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Rock, Liberal MP for Lachine, crossed to the NDP over disagreements with the Liberal government's policies.

Paul Hellyer

1971Notable

Liberal → IndependentMPOntario

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Hellyer left the Liberals, tried to start his own party, joined the Conservatives, then went back to the Liberals, then started another party. He crossed the floor more times th…

Ryan, Liberal MP for Toronto Spadina, crossed to the Progressive Conservatives over policy disagreements with the Trudeau government.

Gordon Minto Churchill

1968Notable

Progressive Conservative → Independent Progressive ConservativeMPManitoba

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Gordon Churchill was a towering figure in Progressive Conservative politics — one of John Diefenbaker's most loyal cabinet ministers who served as Minister of Trade and Commerce…

Léon Balcer

1965Notable

Progressive Conservative → IndependentMPQuebec

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Léon Balcer, one of the most senior Quebec Progressive Conservative MPs and a former cabinet minister under John Diefenbaker, left the PC caucus in 1965 over what he saw as the …

Sam Drover

1955Notable

Liberal → CCFMHANewfoundland

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Drover left the Newfoundland Liberal Party to become the province's first Member of the House of Assembly representing the CCF (predecessor to the NDP).

Maxime Raymond

1943Notable

Liberal → Bloc populaire canadienMPQuebec

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Maxime Raymond, a veteran Liberal MP from Quebec, founded the Bloc populaire canadien in September 1942, breaking decisively with the Liberal Party over Prime Minister Mackenzie…