Voters cast their ballots at the Juan Morel Campos Secondary School polling location in Brooklyn, New York, on Tuesday.

Voters in Dixville Notch, Va., cast their ballots just after midnight Tuesday in Dixville Notch, N.H.

Voters stand in line as others vote at the Neptune Society Columbarium polling location, a neo-classical building that stores cinerary urns, in San Francisco.

Claire Lundy accompanies her grandma Marley Neddenriep to her Election Day polling location on Tuesday at St. Mark's United Methodist Church in Lincoln, Neb.

Hillary Clinton and former President Bill Clinton greet supporters after voting in Chappaqua, N.Y., Tuesday morning.

Zhou Nan Zhou, left, and his wife, Li Li Tan, study their ballots in the Sunset Park neighborhood in the Brooklyn borough of New York. They are originally from China. The neighborhood is ethnically diverse, with a large Asian and Hispanic population.

Voters wait in line to cast ballots at an early polling site in San Antonio, Texas, on Nov. 4. Thanks to early voting, more than 50 million people may have voted before Election Day. Associated Press/Eric Gay

Republican presidential candidate Donald Trump looks at his wife Melania as they cast their votes at PS-59, Tuesday, Nov. 8, 2016, in New York. (AP Photo/ Evan Vucci)

Election worker Rachel Ferguson process ballots at Multnomah County election headquarters in Portland, Ore.

Poll watcher Jane Grimes Meneely, right, watches as voters sign in at the Martha O'Bryan Center community building in Nashville, Tenn. In Nashville, 172 people have been approved to be poll monitors.

Voters who had waited hours in line to vote watch as a Los Angeles County sheriff's deputy arrives with ballot marking devices, at the Delano Recreation Center in the Van Nuys section of Los Angeles. Frustrations ran high at the Los Angeles polling place as voters were left waiting when ballot marking devices arrived late.

Election official Gillian McGinnis collects a ballot along a car drop off site in Longmont, Colo.

Voters sit in rows of chairs at Rosemont Middle School as they wait their turn to cast their ballots in Norfolk, Va.

Republican vice presidential candidate Gov. Mike Pence stands with his wife Karen as they watch Donald Trump speak during a campaign rally early , Tuesday morning in Grand Rapids, Mich.

Voters head into their election day polling location at St. Mark's United Methodist Church in Lincoln, Neb.

Voters cast ballots at the St. Thomas More polling location in Cleveland, Ohio.