 State Representative Steve Santarsiero sought the Democratic nomination for the seat.Other potential Democratic candidates included former U.S. Representative Patrick Murphy, Bucks County Commissioner Diane Marseglia, businesswoman and 2014 candidate Shaughnessy Naughton, and United States Army Ranger and 2014 nominee Kevin Strouse.The incumbent was Republican Mike Fitzpatrick, who had represented the district since 2011, and previously represented it from 2005 to 2007.