Overview
- The decision was delivered from the bench on Feb. 13, with full written reasons to follow, leaving the Montreal-area seat vacant.
- In the 2025 race, a judicial recount flipped an initial Bloc lead to a Liberal victory by a single vote for Tatiana Auguste.
- Sworn filings describe a misprinted postal code on special‑ballot envelopes, with at least one ballot returned to voter Emmanuelle Bossé and an estimate of roughly 40 envelopes affected.
- The ruling overturns an October Quebec Superior Court decision that treated the mistake as human error not rising to an electoral irregularity.
- The vacancy reduces the Liberals to 168 seats; the Bloc is urging a prompt by‑election, and the Liberal Party says it respects the ruling.