Complex sentence: He ran again in St. Mary, this time as an independent, in the 1945 federal election but was again defeated before finally winning a seat as an independent in the riding of Papineau in the 1949 federal election by less than 100 votes.
Split into simpler sentences: 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.