He moved to federal politics and lost in a bid for election as a Conservative candidate for the House of Commons of Canada in a 1938 by-election in the Montreal riding of St. Mary. In 1940, he was arrested and charged under the Defence of Canada Regulations. He was imprisoned at Camp Petawawa in Ontario until the end of the war. He ran again in St. Mary, this time as an independent candidate, in the 1945 federal election, but was again defeated. He won a seat as an independent candidate in the riding of Papineau in the 1949 federal election by less than 100 votes. He did not run for re-election in the 1953 election.