 In February 2003, the Parti libéral du Québec announced that Mario Faubert would be its candidate in the riding of Beauharnois for the upcoming Quebec general election.He was named the liberal candidate after the Beauharnois-Huntingdon district was split in two and incumbent André Chenail chose to ride in Huntingdon.He got 42.77% of the vote but lost by 639 votes to Parti Québécois candidate Serge Deslières.