Republican Sen. Deb Fischer has won the Nebraska Senate race, defeating Independent Dan Osborn, according to a race call by the Associated Press. With her victory, Republicans have taken control of the upper chamber of Congress.

OMAHA, Neb. (AP) — Republican U.S. Sen. Deb Fischer faces her strongest reelection challenge yet Tuesday as she takes on a former labor union boss who eschewed both major political parties to run as an independent while painting himself as a working class champion.

Fischer, a Republican incumbent bogged down by low approval ratings, faced newcomer Dan Osborn, who said he would not caucus with either party

Two-term Republican Sen. Deb Fischer is defending her Senate seat in a contest that's grown unexpectedly competitive in Nebraska, a reliably red state ... And without a Democrat in the race to draw the party's votes, the race appeared to be within striking ...