Warner defeated Republican challenger Daniel Gade.
Democratic Sen. Mark Warner of Virginia has won a third term.
Warner defeated Republican challenger Daniel Gade in a low-key race in which the incumbent had a massive cash advantage. Democrats haven't lost a statewide election in Virginia since 2009.
Warner is a businessman who co-founded the company that became Nextel, and he was governor from 2002 to 2006. He's the top Democrat on the Senate Intelligence Committee.
Gade is a professor at American University in Washington. While in the Army, he was seriously injured in Iraq in 2005, losing a leg after his Humvee was hit by a roadside bomb.
Control of the Senate is a razor-close proposition in the election as Republicans fight to retain their majority against Democratic candidates who are challenging Donald Trump's allies across a vast political map.
Securing a Senate majority will be crucial for whichever candidate wins the White House.
Senators confirm administration nominees, including the Cabinet, and can propel or stall the White House agenda.
With Republicans now controlling the chamber, 53-47, three or four seats will determine party control, depending on who wins the presidency because the vice president can break a tie.
Republicans are fighting to hold on to their slim majority against Democratic candidates who are challenging Trump's allies across a vast political map.
Both parties see paths to victory, but the outcome might not be known on election night.
From New England to the Deep South and from the Midwest to the Mountain West, Republican incumbents are defending seats in states once considered long shots for Democrats.
Senate Majority Leader Mitch McConnell of Kentucky is facing off against Democrat Amy McGrath, a former fighter pilot.