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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.
Idlout, NDP MP for Nunavut, crossed to the Liberals in early 2026, joining the governing party to better advocate for Inuit and northern issues from within government.
Note: This crossing is already tracked under brendan-maguire-2024. Skipping duplicate.
Tilley, Liberal MLA for Northside-Westmount, crossed to the PCs in 2024, joining the governing party.
Adams, Conservative MP for Mississauga-Brampton South, crossed to the Liberals in February 2015 after being denied a Conservative nomination. She was personally welcomed by Just…
Donovan, Wildrose MLA for Little Bow, crossed to the PCs in November 2014 alongside Kerry Towle.
Towle, Wildrose MLA for Innisfail-Sylvan Lake, crossed to the PCs in November 2014, weeks before Danielle Smith's mass crossing. She was unhappy with Smith's leadership.
Lane, PC MHA for Mount Pearl South, crossed to the Liberals in 2014 ahead of the anticipated Liberal wave.
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…
Peschisolido, Alliance MP for Richmond, crossed to the Liberals citing dissatisfaction with the Alliance's direction under Stephen Harper.
Harvey crossed from the PCs to the Liberals in 2000, dissatisfied with the party's direction under Joe Clark.
Price, PC MP for Compton-Stanstead, crossed to the Liberals along with several other Quebec PCs in 2000.
St-Jacques joined the Liberal Party along with other Quebec PC MPs who were unhappy with the party's direction.
Laliberte, NDP MP for Churchill River, crossed to the Liberals in 2000, reportedly for better access to government resources for his northern riding.
Ittinuar, the first Inuk elected to Parliament (NDP, Nunatsiaq), crossed to the Liberals, reportedly under pressure and the promise of advancement for northern issues.
Olson, MP for Medicine Hat, left the declining Social Credit Party to join the Liberals under Pierre Trudeau, who offered him a cabinet position.