Former Quebec MP appeals one-vote election loss to Canada’s Supreme Court, citing uncounted ballot due to address error.

Former Bloc Québécois MP Nathalie Sinclair-Desgagné is appealing the April 2025 federal election result in Terrebonne to Canada’s Supreme Court, contesting her one-vote loss to Liberal Tatiana Auguste. She argues a special ballot was not counted due to an address error on the envelope, calling it an irregularity that undermines electoral integrity. A Quebec Superior Court ruled the error was minor and unintentional, upholding the result. Sinclair-Desgagné disputes that decision, claiming legal and factual errors, and has launched a crowdfunding campaign to cover appeal costs, emphasizing her commitment to democratic accountability. The Supreme Court has not yet decided whether to hear the case.