The Big Story The Liberals have an open-door policy problem
Apr 10, 2026
Elizabeth McCallion, a political scientist at the University of Toronto who studies Canadian party politics, breaks down floor‑crossing. She explains why Marilyn Gladu’s move surprised observers. They discuss social conservative positions, constituent backlash, and whether the Liberals should set limits on who can join. The conversation also covers incentives for MPs to switch and the gap between grassroots supporters and parliamentary representatives.
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New Liberal MP Holds Socially Conservative Positions
- Marilyn Gladu's policy positions are sharply at odds with recent Liberal norms on abortion, conversion therapy, and COVID vaccines.
- Elizabeth McCallion highlights her reputation as a cooperative committee colleague despite those socially conservative stances.
Party Labels Drive Voter Choice More Than Individuals
- Voters often choose MPs by party label, not individual qualities, so floor crossing can feel like a betrayal to constituents.
- McCallion explains many in Sarnia likely voted Conservative for party reasons, making Gladu's switch especially jarring locally.
Liberal Big Tent Tradeoff Between Principles And Power
- The Liberal Party's strength is ideological flexibility, allowing it to capture the median voter and accommodate diverse caucus views.
- McCallion questions whether that big-tent approach now reduces the party to pursuing power and stability above clear principles.