Projections Tuesday show Republicans will hold onto control of the House of Representatives while Democrats will stay in charge of the Senate.
Democrats made key inroads in the Senate, defeating the Republican incumbent in Massachusetts. Sen. Scott Brown lost to Democratic challenger Elizabeth Warren. Democrats also won the swing state of Virginia, where former Republican governor George Allen conceded to former governor Tim Kaine. And Democrats held on in the battleground state of Ohio, where Sen. Sherrod Brown, a Democrat, held off a challenge from Josh Mandel, a Republican.
Democrats also picked up a seat in Indiana, where Rep. Joe Donnelly defeated Republican Richard Mourdock. The contest drew national attention after Mourdock made controversial remarks about rape and abortion. Another Republican candidate who made similarly controversial remarks also lost in Missouri. Rep. Todd Akin lost to incumbent Sen. Claire McCaskill, a Democrat.
Projections also have the Democrats holding onto Florida, where incumbent Bill Nelson defeated Connie Mack.
Thirty-three seats in the 100-seat Senate were up for election. Republicans need to gain four seats to take control.
Projections also indicate little will change in the House, with Republicans maintaining their majority as voters in many states re-elected incumbents from both parties. That means Rep. John Boehner from the battleground state of Ohio will likely retain his post as House speaker.
In a statement late Tuesday night, Boehner said Republicans were humbled to have been chosen by voters to lead the House and that they would continue to oppose any calls to raise taxes. But he also offered to work with any willing partner in the White House.
All 435 House seats were up for grabs and Democrats would have needed to gain 25 seats to take control.