Erin O'Toole lost a confidence vote taken by the federal Conservative caucus on Wednesday, ending his 17-month tenure as leader of the party. He's not the first one who didn't last long. To discuss how and why this happened, now and in the past, and what it means for the future of the Conservative Party of Canada, we welcome Tasha Kheiriddin, national political columnist for Postmedia and a principal at the strategy and public affairs firm, Navigator; and Ben Woodfinden, who writes the Dominion newsletter on Substack and is a doctoral student in political theory at McGill University.

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