On September 26, 2009, he was elected president of the
Quebec Liberal Party. He was elected in a by-election held on June 11, 2012, which was triggered by the resignation of
Tony Tomassi on May 3, 2012. Prior to that, he was an unsuccessful Liberal candidate in the
2007 general election in
Chambly electoral district, finishing third. On November 10, 2022, he was named interim leader of the
Quebec Liberal Party following the resignation of
Dominique Anglade. He also serves as critic for Canadian Relations and Canadian Francophonie and Capitale-Nationale. On December 19, 2025, he was named as interim leader again after
Pablo Rodriguez issued his resignation. ==Electoral record==