U.S. Senate Minority Leader Mitch McConnell (R-KY) waves to supporters with his wife, former United States Secretary of Labor Elaine Chao, at his midterm election night rally in Louisville, Kentucky, November 4, 2014.
Democratic U.S. Senator Jeanne Shaheen of New Hampshire celebrates her re-election victory over challenger Scott Brown at her midterm election night rally in Manchester, Nov. 4, 2014.
Voters fill in their ballots at a polling station during the U.S. midterm elections in Salisbury, North Carolina, Nov. 4, 2014.
Sen. Thad Cochran, R-Miss., salutes his supporters following his victory over Democrat Travis Childers and Reform Party candidate Shawn O'Hara, Tuesday, Nov. 4, 2014, at his victory party in Jackson, Miss.