Live Updates: Vote counts continue in Arizona and Nevada as control of Congress remains unresolved

Washington — The results of Tuesday's midterm elections continued to reverberate across the U.S. political landscape two days after voters went to the polls, with the GOP still in position to win control of the House and the battle for the Senate coming down to a handful of races that remain unresolved.

Both parties and their allies have already begun to prepare for a Dec. 6 runoff in the Georgia Senate race between Democratic Sen. Raphael Warnock and Republican Herschel Walker that could prove decisive, depending on the results of contests in Nevada and Arizona. Republicans need to pick up two out of the three seats in Georgia, Arizona and Nevada to win the Senate, according to CBS News' projections.

Vote counting in Nevada, which remains a toss-up, could last another week, one state official said Wednesday, with tens of thousands votes remaining to be tallied in the state's largest county. In Arizona, Democratic Sen. Mark Kelly leads Republican challenger Blake Masters by more than 95,000 votes in a race that CBS News characterizes as leaning Democratic, with nearly a quarter of the votes cast still uncounted. Alaska's Senate race also remains a toss-up, but the top two candidates are both Republicans, meaning the outcome won't impact the partisan makeup of the Senate.