‘A strange situation’: Conservative MPs sharply rebuke floor-crosser Ma as Liberals inch toward majority

Toronto-area MP Michael Ma is the latest disgruntled Conservative to join the ‘big tent’ Liberals. While several Liberal MPs tell The Hill Times more floor-crossers are coming, Conservative strategists say it won't impact Pierre Poilievre's leadership review in January.

Prime Minister Mark Carney, right, welcomes new Liberal MP Michael Ma to the stage at the Liberals' holiday party, just a few hours after Ma announced he was crossing the floor from the Conservatives.The Hill Times photograph by Stuart Benson

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BY STUART BENSON, MARLO GLASS, ELEANOR WAND

December 12, 2025

Conservative MPs are questioning the "strange" way their former colleague defected to the Liberal Party, as Leader Pierre Poilievre heads into 2026 facing a leadership review with a shrinking caucus while the Liberals are on the precipice of forming a majority government.

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