Complex sentence: From 1971 to 1973, AuCoin served in the Oregon House of Representatives, and, at the age of 32, became the youngest House Majority Leader (1973-1975), a record that still stands.
Split into simpler sentences: From 1971 to 1973, AuCoin served in the Oregon House of Representatives. At the age of 32 he became the youngest House Majority Leader (1973-1975), a record that still stands.