 He was re-elected with 84% of the vote in the primary and unopposed in the general in 2014; the district had a PVI of D+15.Doyle was challenged for the Democratic nomination by Janis Brooks, who ran against him in 2012 and 2014.The 15th district was in Eastern Pennsylvania and included Lehigh County and parts of Berks, Dauphin, Lebanon and Northampton counties.