(WHTM) — Republican and Democrat candidates in the races for governor and U.S. Senate in Pennsylvania cast their ballots early Tuesday morning.

Josh Shapiro, the Democrat nominee for governor, cast his ballot at Rydal in Abington Township, Montgomery County, at Rydal Elementary School. He was joined by members of his family and took questions from the media outside the school.

Doug Mastriano, the Republican nominee, voted Tuesday at New LIFE Worship Center Church of God in Fayetteville, Franklin County.

The winner of the Pennsylvania governor’s race will be historic regardless of who it is. Shapiro would be the youngest Pennsylvania governor since Mark Schweiker in 2001 and be the first consecutive Democrat governor since 1955-63.

Shapiro’s running mate, Austin Davis, would be Pennsylvania’s first African American lieutenant governor.

Doug Mastriano would be the first veteran elected governor since Tom Ridge, and his running mate, Carrie DelRosso, would be the commonwealth’s second female lieutenant governor.

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In the Pennsylvania Senate race, Republican Mehmet Oz voted at Bryn Athyn Borough Hall in Huntingdon Valley, Montgomery County. He was joined by his wife Lisa Oz and will hold his election night party in Bucks County.

Democrat Senate nominee John Fetterman voted at New Hope Baptist Church in Braddock where he served as mayor. He was joined by his wife Gisele, who has joined him on the trail throughout the race.

With Republican Pat Toomey retiring, the race could determine the balance of power in Washington, D.C. The last time Pennsylvania had senators from the same party was from 1994-2006 with Arlen Specter and Rick Santorum.

A Fetterman win would make it only the third time since 1914 that Pennsylvania has had two Democrat U.S. senators. It briefly happened between 2009 and 2011 when Specter changed his party affiliation to Democrat.

Recent Pennsylvania U.S. Senate races have been very close, with several coming down to less than 100,000 votes. In 2010 and 2016, Pat Toomey won by fewer than 90,000 votes in both races.

The closest Pennsylvania U.S. Senate race was in 1956 when Joseph Clark Jr. won by 17,970 votes.

Pennsylvania polling places are open until 8 p.m. on Nov. 8.