The race for U.S. Senate in Florida between Democratic incumbent Sen. Bill Nelson and Republican Rick Scott is too close to call.

As of 6:30 a.m. Wednesday, Scott's lead is 34,537 votes out of more than 8 million cast - a 0.43 margin.

Under state law in Florida, a recount is mandatory if the winning candidate's margin is less than 0.5 percentage points.

With 100 percent of precincts reporting, Scott had about 4,073,835 votes and Nelson had about 4,039,298 votes as of 6:30 a.m. Wednesday.

Scott declared victory in the race late Tuesday night.

Nelson has not publicly conceded. Nelson's campaign staff said a full statement would be coming Wednesday morning.

The most famous Florida recount was in the 2000 presidential election between George W. Bush and Al Gore. The U.S. Supreme Court halted the recount just before the deadline, giving the state's electoral votes and the presidency to Bush.

Note: The Associated Press contributed to this story.

Related: What would it take to trigger a recount in Florida?

More: Complete Florida 2018 midterm election results

Previous: Ron DeSantis elected Florida governor, defeating Andrew Gillum

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