Joseph A. "Joe" Sestak, Jr. (born December 12, 1951) is a U.S. Representative from Pennsylvania's seventh congressional district, having been elected in 2006. Before entering Congress, he was a Vice Admiral in the United States Navy. A Democrat, he has voted with his party 97.5% of the time during the current Congress and has missed 125 (16.1%) of votes. Sestak defeated Democrat Senator Arlen Specter in the primary for the 2010 election.