Carney’s centrist Liberals consolidate power with defections, byelection wins

Mark Carney turned a fragile minority into a majority by stitching together byelection wins and floor crossings, a shift that has redrawn the country’s economic and political map. The Liberals won three byelections on April 13, 2026, in two Toronto-area ridings and Terrebonne, Quebec, giving the party its first majority government since 2019. That came after five opposition MPs crossed over in recent months, four of them from the Conservative caucus.

The most visible defection came on April 8, when Marilyn Gladu, the Conservative MP for Sarnia-Lambton-Bkejwanong, joined the Liberals. Gladu said the move was the “best thing” for her riding, the country and herself. Carney said new Liberal MPs must support core party values, including abortion rights and LGBTQ rights, while also bringing expertise and new perspectives. Conservatives responded by accusing the Liberals of betraying voters, underscoring how sharply the floor crossings have altered the terms of the fight in the House of Commons.

The result is a centrist coalition with a broader, and more complicated, base than the Liberals had a year ago. Carney has coupled a pro-growth economic message with promises to lower the cost of living, confront housing shortages and push major infrastructure projects. He has also tied that agenda to trade diversification and a more independent Canadian economy in response to the trade war launched by U.S. President Donald Trump. In practice, that puts more weight on Toronto’s suburban battlegrounds, central Ontario, and Quebec seats such as Terrebonne, while weakening the Conservatives’ claim to be the sole channel for voters worried about affordability and economic stagnation.

The political scoreboard is shifting with it. Gaining influence are MPs and ridings aligned with pragmatic economic management, housing construction and infrastructure investment, along with regions that can sell a centrist federal pitch as locally useful rather than ideologically rigid. Losing leverage are Conservatives who had spent more than two years leading the polls and many analysts had expected to win in 2025 before the Liberal resurgence. Pierre Poilievre’s party now faces a government that can legislate without needing opposition support, and a rival that has shown it can recruit from the right without abandoning social positions on abortion and LGBTQ rights.

Carney’s approach recalls Michael Ignatieff’s failed appeal to a Liberal “big red tent,” but the timing is different. After years of Conservative dominance in the polls, the Liberals have regained momentum, and the new majority suggests that Canada’s old left-right divide is being reordered around who can manage growth, housing and sovereignty fastest.