Republicans have managed to hold on to their slim majority in the House of Representatives, NBC News projects. In doing so, they've captured a trifecta in Washington once more, with control over both chambers of Congress and the White House.

Republicans have won enough seats to control the U.S. House, completing the party’s sweep into power and securing their hold on U.S. government alongside President-elect Donald Trump.

The GOP won control over the White House and Senate in last week’s election, but whether they will also control the House — creating a Republican trifecta — is unclear for now. As of Tuesday night, The Associated Press still hadn’t called about a dozen races,

Republicans inched their way closer to a potential House majority after a key win Tuesday. Still, several toss-up races remain in play that could determine which party controls the House next year.