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.

Republicans have managed to hold onto their slim majority in the House of Representatives, NBC News projects.

House Republicans were set to hold the majority on a narrow margin, which puts their advantage at risk if GOP representatives are absent.

Control over the U.S. House of Representatives still hangs in the balance, teetering between a Republican or Democratic majority with more than a dozen races left to be called