Complex sentence: At the age of 23, Schock ran for a seat in the Illinois House of Representatives defeating four-term incumbent Democrat Ricca Slone, by just 235 votes out of 40,000 ballots cast, and becoming the youngest member of the Illinois General Assembly in state history.
Split into simpler sentences: At the age of 23, Schock ran for a seat in the Illinois House of Representatives. He defeated four-term incumbent Democrat Ricca Slone, by just 235 votes out of 40,000 ballots cast, and became the youngest member of the Illinois General Assembly in state history.