Québec Solidaire co-spokesperson Gabriel Nadeau-Dubois, left, and Jean-Talon candidate Olivier Bolduc react to their byelection defeat. Bolduc had come in second in the 2022 provincial election.

Voters in the provincial riding of Jean-Talon will be able to elect a new member of the National Assembly in a byelection on Oct. 2. The riding was left vacant when CAQ MNA Joëlle Boutin stepped ...