Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Daniel Cronin - Dan Cronin is a Republican who served in the Illinois Senate representing the 21st district from 1993 until he resigned in November 2010 following his election to the post of DuPage County Chairman. He is also the chairman of the DuPage County Republican Party.
Office Holder