By-election in Arthabaska riding will take place August 11

A voter casts their ballot in advance polls in Chambly, Que., Friday, Sept. 10, 2021. THE CANADIAN PRESS/Ryan Remiorz

By Caroline Plante, The Canadian Press

Posted July 8, 2025 10:21 am.

Last Updated July 11, 2025 10:17 am.

The by-election in the riding of Arthabaska, in Centre-du-Québec, will take place Aug. 11.

The battle promises to be fierce between the leader of the Conservative Party of Quebec (PCQ), Éric Duhaime, and former Radio-Canada host Alex Boissonneault, who is running for the Parti Québécois (PQ).

Alex Boissonneault (Credit: pq.org)

According to the polling aggregator Qc125, the PCQ and the PQ are currently tied with 37 per cent support.

Quebec Conservative Party leader Éric Duhaime. THE CANADIAN PRESS/Karoline Boucher

François Legault’s Coalition Avenir Québec (CAQ) is counting on Keven Brasseur, a former president of the party’s youth commission.

Quebec Premier François Legault (left) and Coalition Avenir Québec‘s Keven Brasseur (right). (Credit: @francoislegault/X)

Québec solidaire (QS) has announced that Pascale Fortin, a health-care worker, will represent its party. Only the Quebec Liberal Party has yet to announce a candidate.

(Credit: Pascale Fortin/Facebook)

The by-election was triggered following the resignation of Eric Lefebvre, who was elected last April as a Conservative Party of Canada MP.

The Arthabaska riding has been held by the Coalition Avenir Québec since 2012.

–With files from La Presse Canadienne

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