The Career Ender

Evans had left the PCs for the NDP in 2022. Just two years later, she went back to the PCs. She represents one of Canada's most remote ridings - Torngat Mountains in Labrador, h…

Bernier narrowly lost the Conservative leadership race to Andrew Scheer (by less than 2%). Bitter about the loss, he left to start his own party - the People's Party of Canada -…

Hassainia disagreed with NDP leader Thomas Mulcair's position on the Israeli-Palestinian conflict. She left the party over it.

Rathgeber was a Conservative backbencher who became increasingly frustrated with Stephen Harper's tight control over MPs. He felt MPs were being treated as rubber stamps rather …

Del Mastro had been one of PM Harper's closest allies - his parliamentary secretary. He left caucus after being charged by Elections Canada with overspending on his campaign and…

Mourani left the Bloc and publicly renounced her belief in Quebec sovereignty - a fundamental change of heart. She wanted to join the NDP, but the NDP has a policy against accep…

Wilson had resigned from the Liberal caucus over allegations about his finances. He then joined the Green Party, becoming their first-ever Member of Parliament.

Parrish was expelled from the Liberal caucus after publicly insulting Prime Minister Paul Martin and famously stomping on a George W. Bush doll on a comedy TV show.

One of the most dramatic ideological shifts - from the left-wing NDP all the way to the right-wing Progressive Conservatives.

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 …

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.

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…

Lévesque believed Quebec should become its own country. The Liberals disagreed. So he left and eventually founded the Parti Québécois.

During the Great Depression, Stevens investigated big companies that were exploiting workers and farmers. His own party tried to stop him. So he left and started his own party.

Andrews represented the heart of Winnipeg. When the government violently crushed the Winnipeg General Strike of 1919, he couldn't stay in the party. He left to sit alone as an i…