Complex sentence: He was finally elected to Parliament in the 1968 Canadian election from the suburban Toronto riding of York West but resigned in 1971 before his term was complete in order to run for a seat in the Ontario legislature on behalf of the Ontario Liberal Party.
Split into simpler sentences: He was finally elected to Parliament in the 1968 election from the suburban Toronto riding of York West. He resigned in 1971 before his term was complete in order to run for a seat in the Legislative Assembly of Ontario as a candidate of the Ontario Liberal Party.