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All Floor Crossings
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.
28 crossings
~Q
~5 Quebec Liberal MPs oppose conscription
1944NotableLiberal → Independent LiberalMPQuebec
1/5
In late 1944, when Mackenzie King finally implemented limited conscription for overseas service (the "Zombies" crisis), several Quebec Liberal MPs broke with the party to sit as…
War & Conscription
DL
David-Arthur Lafortune
1909Liberal → Independent LiberalMPQuebec
1/5
David-Arthur Lafortune, a Quebec Liberal MP, broke from the Liberal caucus to sit as an Independent Liberal around 1909, reflecting internal tensions within the Quebec Liberal c…
Fought Their Leader
Dalton McCarthy
1893NotableConservative → 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…
Stood on Principle
Guillaume Amyot
1887Conservative → NationalistMPQuebec
1/5
Amyot, Conservative MP for Bellechasse, left the Conservative caucus to sit as a Nationalist, protesting the execution of Louis Riel and the government's treatment of French Can…
Stood on Principle