Complex sentence: He was re-elected by greater margina in the election of 1962 and the election of 1966, and supported Edward Schreyer's bid to become leader of the NDP in 1968-69.
Split into simpler sentences: He was re-elected by a greater margin in the election of 1962 and the election of 1966. He supported Edward Schreyer's bid to become leader of the in 1968-69.