Reston voters will choose between Democratic Sen. Mark Warner and Republican Bert Mizusawa for U.S. Senate on Tuesday, Nov. 3.

Polls open at 6 a.m. and close at 7 p.m. Voters still in line at 7 p.m. can cast their ballots, according to the Virginia Mercury's voter guide. Voters must show an acceptable form of identification at the polls. A Virginia driver's license, even if expired, qualifies.

Unofficial results will be posted on the Virginia Department of Elections website after polls close. Results become official only after the State Board of Elections certifies the election.

The candidates

Warner, a three-term Democrat first elected to the Senate in 2008, serves as vice chairman of the Senate Intelligence Committee. A former Virginia governor and technology entrepreneur, he has called this his final campaign for the seat, the Virginia Mercury reported in October.

Warner pointed to the Trump administration, challenges posed by artificial intelligence and his support for universal healthcare coverage as reasons for seeking a fourth term. He cited bipartisan work on infrastructure, broadband expansion and semiconductor manufacturing.

Mizusawa, a retired U.S. Army major general and West Point graduate, earned law and public policy degrees from Harvard. He served on the Senate Armed Services Committee staff and as a deputy undersecretary of the Army. He also advised President Donald Trump's 2016 campaign and later served as a CIA adviser, according to the Virginia Mercury.

Mizusawa won the Republican primary on Aug. 4, receiving 51.5% of the vote against David Williams and Kim Farington, according to Ballotpedia. He has argued his connections to Trump would give him influence the incumbent lacks.

Where they differ

On the economy, Warner said ending the conflict with Iran and reversing Trump's tariffs would offer the quickest relief from high prices. Mizusawa called for more domestic oil, natural gas and nuclear production, including small modular reactors.

On healthcare, Warner introduced a bill that would establish a public insurance option, restore enhanced Affordable Care Act subsidies and reverse healthcare provisions of the 2025 Republican tax-and-spending plan. Mizusawa called for tying federal Medicaid funding to states' ability to account for how the money is spent.

On housing, Mizusawa proposed eliminating the capital gains tax on sales of primary residences. He argued that encouraging more homeowners to sell would increase housing supply.

The fundraising gap

Warner holds a wide fundraising lead. Through July 15, the most recent reporting period, Warner had raised more than $25.1 million and had $16.1 million on hand, according to Virginia Public Access Project data cited by the Virginia Mercury. Mizusawa had raised just over $376,000, with about $53,000 remaining.

Stephen Farnsworth, professor emeritus of political science at the University of Mary Washington, told the Virginia Mercury that Republicans had not made the race a priority.

No Republican has won a U.S. Senate election in Virginia since John Warner in 2002.

What else is on the ballot

Beyond the Senate race, every Virginia ballot includes a U.S. House contest and three proposed constitutional amendments that would address same-sex marriage, reproductive health rights and voting rights for former felons, according to the Virginia Mercury voter guide.

Mailed ballots must be postmarked by Election Day and received by noon on Nov. 6. Voters who missed the registration deadline can still register and vote by provisional ballot through Election Day, according to Fox 5 DC.

Voters can confirm their polling place and registration at vote.elections.virginia.gov.