Conversation so far:
What was the first job John Sherman Cooper held?
He was admitted to the bar by examination in 1928 and opened a legal practice in Somerset.
What was the first office John Sherman Cooper ran for?
After being urged into politics by his uncle, Judge Roscoe Tartar, Cooper ran unopposed for a seat in the Kentucky House of Representatives as a Republican in 1927.

Question: How long was he in office?
Self-contained rewrite: How long was John Sherman Cooper in office in the Kentucky House of Representatives?