Bloc Québécois candidate Nathalie Sinclair-Desgagné speaks in the foyer of the House of Commons on Parliament Hill in Ottawa, on Thursday, May 15, 2025. THE CANADIAN PRESS/Spencer Colby

Former Bloc MP who lost by single vote says she will appeal to Supreme Court

Nov 3, 2025 | 10:09 AM

MONTREAL — The former Bloc MP who lost her Quebec riding by a single vote is taking the matter to the Supreme Court of Canada.

Nathalie Sinclair-Desgagné says she will appeal a recent Quebec Superior Court decision that rejected her request for a new election in the Montreal-area riding of Terrebonne.

She had challenged the result after a Bloc voter revealed that her special ballot was not counted and instead returned to her because of an error in the address on the envelope provided by Elections Canada.

But a judge ruled last week that the mistake was a simple human error that did not warrant annulling the election.