All Floor Crossings

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

Paul Hellyer

1972

Independent → Progressive ConservativeMPOntario

0/5

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.

Paul Hellyer

1971Notable

Liberal → IndependentMPOntario

0/5

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

1968Notable

Liberal → IndependentMPOntario

4/5

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…

Hammell, Progressive MP for Muskoka, rejoined the Liberal Party as the Progressive movement began fracturing.

Hugh Guthrie

1917Notable

Liberal → UnionistMPOntario

4/5

Another Liberal who supported conscription during WWI and crossed the floor.

Dalton McCarthy

1893Notable

Conservative → IndependentMPOntario

1/5

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. …

Richard John Cartwright

1869Notable

Liberal-Conservative → LiberalMPOntario

5/5

Cartwright believed he deserved to be Finance Minister. When Prime Minister Macdonald gave the job to someone else, Cartwright left the party in anger.