including all of Washington, Greene, and Fayette counties, most of Indiana and Somerset counties, and parts of Westmoreland County. The district was mostly unchanged by redistricting, though it did have to expand eastward to take in more population. It has a PVI of R+18 and voted for Donald Trump by 32 points in 2020. Republican Guy Reschenthaler, who has represented the district since 2019, was most recently re-elected in 2022 having been unopposed in the primary and general elections. Republican primary Candidates Nominee Guy Reschenthaler, incumbent U.S. Representative Endorsements Results General election Predictions Results District 15 The 15th district is based in North Central Pennsylvania west of the Appalachian Divide, including State College, Lock Haven, and Bradford.The district was mostly unchanged by redistricting, though it did lose Johnstown in exchange for the parts of State College formerly in the 12th district. It has a PVI of R+20 and voted for Donald Trump by 37 points in 2020. Republican Glenn Thompson, who has represented the district since 2009, was most recently re-elected in 2022 receiving 69.9% of the vote. Republican primary Candidates Nominee Glenn Thompson, incumbent U.S. Representative Declined Fred Keller, incumbent U.S. Representative (filed to run in Pennsylvania's 9th congressional district, then announced retirement) Endorsements Results General election Predictions Results District 16 The 16th district is based in Northwest Pennsylvania, including all of Erie, Crawford, Mercer, Lawrence, and Butler counties and parts of Venango County. The district was mostly unchanged by redistricting. It has a PVI of R+13 and voted for Donald Trump by 21 points in 2020. Republican Mike Kelly, who has represented the district since 2011, was most recently re-elected in 2022, winning 59.4% of the vote in the general election. Republican primary Candidates Nominee Mike Kelly, incumbent U.S. Representative Endorsements Results Democratic primary Candidates Nominee Dan Pastore, FishUSA founder Eliminated in primary Rick Telesz, farmer Endorsements Results General election Predictions Results District 17 The 17th district is based in the western and northern suburbs of Pittsburgh, including parts of Allegheny County and all of Beaver County. The district was mostly unchanged by redistricting. It has an even PVI and voted for Joe Biden by 6 points in 2020. Democrat Conor Lamb, who represented the district since 2018, was re-elected in 2020 with 51.1% of the vote. He retired to run for the U.S. Senate in 2022. Lamb was succeeded by former Navy Officer Chris Deluzio, who was