In 2001, he was elected as a
Montreal city councillor as a member of Union Montreal. He was reelected in 2005 as the borough mayor of Verdun. He was named majority leader at city council, and was president of the
Société de transport de Montréal. He was reelected as Verdun borough mayor in 2009, following the
2009 Montreal municipal election and quit that post on December 4, 2012, stating that he was disenchanted with the fickle nature of political life in light of the "circus" following former mayor Gérald Tremblay's departure, referring to new Montreal Mayor Michael Applebaum and what he called the "betrayal" of his fellow city councillors. He was named to the
Montreal Executive Committee as the person responsible for public safety. Trudel served as the
Quebec Liberal Party Member of the
National Assembly of Quebec for the
Bourget electoral district from 1985 to 1989. ==Education==