Complex sentence: Poulin ran for Caouette's party in the 1968 federal election and also ran for the "Ralliement national", a provincial social credit party not endorsed by Caouette, in the 1966 provincial election.
Split into simpler sentences: Poulin ran for Caouette's party in the 1968 federal election. He also ran for the Ralliement national in the 1966 provincial election.