Craig Sauvé, an independent councillor for Montreal's Sud-Ouest borough, is hoping to claim the mayor's seat in the upcoming municipal elections by running for a new party: Transition Montréal.

"Until now, Montrealers have had only two options: two old parties that have been in constant opposition on city council for the past four years," he told reporters on Thursday morning. 

"Our party, Transition Montréal, wants to offer a new voice."

The former Projet Montréal city councillor will be facing L…