Updated 4:37 p.m. ET
Incumbent Sen. Bill Nelson in Florida is calling for a recount in a razor-thin race with Republican Rick Scott, the state's outgoing governor.
Scott is up by about 34,000 votes out of 8.1 million cast. That's within the half-percent margin that launches an automatic recount in Florida.
Scott claimed victory Tuesday night. But Nelson is not conceding. In a statement, Nelson said, "We are proceeding to a recount."
Nelson's campaign estimates that there are more than 100,000 ballots left to be counted.