Rep. Carlos Curbelo, a Republican, has lost a bid for reelection in Florida's 26th Congressional District to Debbie Mucarsel-Powell, a Democrat.
With all precincts reporting, Mucarsel-Powell has 50.9 percent of the vote, followed by Curbelo with 49.1 percent.
Curbelo has represented the district in the House since 2015.
Democrats have gained a majority in the House, with 235 seats in the next Congress. All of Florida's House seats have been decided; two switched hands, all going to Democrats.
The number of votes cast for Democrats in House races has increased 55.0 percent from the 2014 midterms, compared with an increase of 25.6 percent for Republicans.
The district went for Democrat Hillary Clinton in 2016 by a margin of 16.3 points. President Trump, a Republican, won Florida by 1.2 points.
Data is from the Associated Press. This story may be updated if more information becomes available. It is powered by Heliograf, The Post's artificial intelligence system.