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Fourth floor-crossing weakens Poilievre’s leadership, former Harper staffer says

Her move gives the Liberals another seat and renews scrutiny of Pierre Poilievre after four Conservative defections since late last year.

  • On Wednesday, four-time Conservative MP Marilyn Gladu joined Prime Minister Mark Carney's Liberals, becoming the fourth Tory to defect since November and stating the country needs "a serious leader."
  • Conservative leader Pierre Poilievre has faced mounting caucus instability as Nova Scotia MP Chris d'Entremont, Ontario MP Michael Ma, and Alberta MP Matt Jeneroux departed in previous months, signaling broader discontent.
  • Dimitri Soudas, former communications director for Stephen Harper, warned that Gladu's departure "weakens his leadership" more than previous exits, describing her as a "true-blue conservative" whose defection caught people off guard.
  • Winning at least one of three byelections set for Monday would allow Carney's government to secure a majority, while rumours persist about additional Conservatives considering floor-crossing moves.
  • Despite securing 87 per cent of delegate support at the January convention, Poilievre faces calls from pundits to shift his message; strategist Jeff Rutledge emphasized the leader must convey confidence and present a clear plan.
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23 Articles

Lean Left

A former close collaborator of Stephen Harper believes that Marilyn Gladu's decision to leave the Conservative Party to join the Liberals weakens Pierre Poilievre's leadership.

·Montreal, Canada
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Prince George CitizenPrince George Citizen
+4 Reposted by 4 other sources
Lean Left

Fourth floor crossing weakens Poilievre's leadership, former Harper staffer says

OTTAWA — A former top aide to Stephen Harper says Marilyn Gladu's decision to leave the Conservative party for the Liberals is raising questions about Pierre Poilievre's leadership.

·Prince George, Canada
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The Toronto StarThe Toronto Star
+2 Reposted by 2 other sources
Lean Left

Fourth floor-crossing weakens Poilievre’s leadership, former Harper staffer says

Fourth floor-crossing weakens Poilievre’s leadership, former Harper staffer says

·Toronto, Canada
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Global News broke the news in Toronto, Canada on Wednesday, April 8, 2026.
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