Please answer the following question: David E. Boswell is a former Democratic member of the Kentucky Senate having represented the 8th District from 1990 to 2011. Earlier he was a member of the Kentucky House of Representatives from 1978 through 1983. He was the 2008 Democratic nominee for U.S. Representative for Kentucky's 2nd Congressional District and lost to Republican nominee Brett Guthrie. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Office Holder