Complex sentence: At age 22, Walker lost a run for the Wisconsin State Assembly in a Milwaukee district in 1990, though he won later, after moving to a more Conservative district in Wauwatosa, Wisconsin.
Split into simpler sentences: At age 22, Walker lost a run ran for the Wisconsin State Assembly in a Milwaukee district in 1990. Though he won again later, after moving to a more Conservative district in Wauwatosa, Wisconsin.