The midterm elections brought a major shift in power, as Republicans seized control of the U.S. Senate, giving them control of both bodies of Congress. Republicans gained at least 8 Senate seats, creating a 53-46 Republican majority. The two independent senators will caucus with the Democrats. A Louisiana Senate seat has yet to be filled, and the successful candidate will be determined by a December 2014 run-off. In the U.S. House of Representatives (House), Republicans expanded their majority and now control at least 244 seats in the 435-seat chamber.