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Every documented case of a Canadian MP, MPP, MLA, MNA, or MHA switching parties — federal and provincial, 1867 to present. Filter by level, province, or category.
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.
Lucien Lamoureux, the Liberal MP for Stormont—Dundas in eastern Ontario, chose to sit as an Independent in 1968 when he was elected Speaker of the House of Commons. While Speake…
Already in DB as william-hammell-1922.
Another Liberal who supported conscription during WWI and crossed the floor.
D'Alton McCarthy, one of the most prominent Conservative MPs and a close ally of John A. Macdonald, broke with the Conservative Party over the Manitoba Schools Question — whethe…
John Wallace, a Liberal MP from Ontario, crossed the floor to join the Liberal-Conservative Party in 1883. Like several Ontario MPs of the era, Wallace was attracted by John A. …
Cartwright believed he deserved to be Finance Minister. When Prime Minister Macdonald gave the job to someone else, Cartwright left the party in anger.