In the 1958 Canadian federal election, Georges Rousseau unsuccessfully sought election in Mercier riding in Quebec as a Radical chrétien (Christian radical) candidate. He won 687 votes, 1.3% of the total.
On 29 May 1967, Radical chrétien candidates ran in three federal by-elections in Quebec ridings. Together, they won 10,506 votes, or 10.3% of the popular votes in the ridings in which they ran.
René Villeneuve, the candidate in Hull riding, placed second in a field of five candidates, with 8,715 votes, 38.4% of the total. Albert Paiement won 702 votes (6.6%) in Papineau, and Rolland Corbeil won 1089 votes (6.8%) in Richelieu-Verchères riding.
