Rep. Markwayne Mullin, a Republican, has won another term representing Oklahoma's 2nd Congressional District, beating Jason Nichols, a Democrat.
With all precincts reporting, Mullin has 65 percent of the vote, followed by Nichols with 30.1 percent.
Mullin has represented the district in the House since 2013.
Democrats have gained a majority in the House, with 235 seats in the next Congress. All of Oklahoma's House seats have been decided; one switched hands, 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 President Trump, a Republican, in 2016 by a margin of 50.1 points. Trump won Oklahoma by 36.4 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.