All Floor Crossings

Brendan Maguire

2024

Liberal → Prog. ConservativeMLANova Scotia

4/5

Maguire left the Nova Scotia Liberals and joined the governing Progressive Conservatives.

Khan, Liberal MP for Mississauga-Streetsville, crossed to the Conservatives in January 2007 after Prime Minister Harper appointed him as special adviser on Middle East and South…

David Emerson

2006Notable

Liberal → ConservativeMPBritish Columbia

5/5

This is one of the most controversial crossings in Canadian history. Emerson was elected as a Liberal, and just TWO WEEKS later, he crossed to join Stephen Harper's new Conserva…

Belinda Stronach

2005Notable

Conservative → LiberalMPOntario

5/5

In one of the most dramatic moments in Canadian parliamentary history, Stronach crossed the floor to join Paul Martin's Liberal cabinet. Her single vote helped save the minority…

Dennis Fentie

2002Notable

NDP → Yukon PartyMLAYukon

5/5

Fentie left the Yukon NDP and joined the Yukon Party.

Laliberte, NDP MP for Churchill River, crossed to the Liberals in 2000, reportedly for better access to government resources for his northern riding.

Roch, Manitoba Liberal MLA for Springfield, crossed to the PCs after failing to secure a Liberal nomination for the next election.

Ittinuar, the first Inuk elected to Parliament (NDP, Nunatsiaq), crossed to the Liberals, reportedly under pressure and the promise of advancement for northern issues.

Jack Horner

1977Notable

Progressive Conservative → LiberalMPAlberta

4/5

Horner was an Alberta Conservative who crossed to join Pierre Trudeau's Liberal cabinet. In Alberta, being a Liberal is almost unthinkable - this was a huge deal.

Bud Olson

1967Notable

Social Credit → LiberalMPAlberta

5/5

Olson, MP for Medicine Hat, left the declining Social Credit Party to join the Liberals under Pierre Trudeau, who offered him a cabinet position.

Greenlay, a Manitoba PC MLA, crossed the floor to join the Liberal-Progressive government of Douglas Campbell, who was a childhood friend. He was immediately appointed Provincia…

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.