As the votes roll in, the Butler Eagle will update this post throughout the night with the results from the races that affect Butler County residents.
A preview of all ballots, broken down by municipality, is available on Butler County's website here. Polls are open until 8 p.m.
Residents can also follow along with the election on the Butler Eagle's Twitter and Facebook pages.
U.S. REPRESENTATIVE - 16TH DISTRICT
• Ron DiNicola, Democrat
• Mike Kelly, Republic
• Ebert G. Bill Beeman, Libertarian
Kelly's campaign: DNicola concedes race.
According to Pennsylvania Department of State, Mike Kelly currently holds a 51% to 47.8% lead. He won 126,188 votes to DiNicola's 118,392 votes, according to unofficial totals posted online by state election officials.
PA. STATE REPRESENTATIVE - 12TH DISTRICT
• Dan B. Smith Jr., Democrat
• Daryl Metcalfe, Republican
Unofficial results show incumbent Daryl Metcalfe will serve an 11th term representing the 12th District after defeating challenger Dan Smith.
U.S. REPRESENTATIVE - 15TH DISTRICT
• Susan Boser, Democrat
• Glenn G.T. Thompson, Republican
According to unofficial results, Thompson has won the 15th District.
PA. STATE REPRESENTATIVE - 8TH DISTRICT
• Lisa Boeving Learned, Democrat
• Tedd Nesbit, Republican
Unofficial results show Tedd Nesbit has won the 8th district.
PA. STATE REPRESENTATIVE - 10TH DISTRICT
• Aaron Bernstine, Democratic/Republican
• Darcelle L. Slappy, Green
Unofficial results show Bernstine has won the 10th District.
U.S. REPRESENTATIVE - 17TH DISTRICT
• Conor Lamb, Democrat
• Keith Rothfus, Republican
According to unofficial reports, Conor Lamb has won the 17th District.
PA. STATE REPRESENTATIVE - 11TH DISTRICT
• Brian Ellis, Republican
• Samuel Doctor, Independent
Unofficial results show Ellis has won the 11th District.
PA. STATE REPRESENTATIVE - 14TH DISTRICT
• Amy Fazio, Democrat
• Jim Marshall, Republican
Unofficial results show Marshall has won the 14th District.
PA. STATE REPRESENTATIVE - 64TH DISTRICT
• John Kluck, Democrat
• R. Lee James, Republican
Unofficial results show James has won the 64th District.
PA. STATE REPRESENTATIVE - 60TH DISTRICT
• Jeff Pyle, Republican
Pyle will continue to represent the 60th district.
• Tom Wolf, Democrat
• Scott R. Wagner, Republican
• Paul Glover, Green
• Ken V. Krawchuk, Libertarian
According to unofficial results, Tom Wolf will continue being Pennsylvania's governor.
PA. UNITED STATES SENATOR
• Bob Casey Jr., Democrat
• Lou Barletta, Republican
• Neal Gale, Green
• Dale R. Kerns Jr., Libertarian
According to unofficial results, Bob Casey Jr. will continue working as a U.S. Senator.