2014 House races

President Obama stumped for gubernatorial candidate Tom Wolf this weekend in Philadelphia. Wolf's victory Tuesday was among the few bright spots for Democrats. Pablo Martinez Monsivais/AP hide caption

Sen. Mitch McConnell is accompanied by his wife, Elaine Chao, at his victory event Tuesday in Louisville, Ky. Aaron P. Bernstein/Getty Images hide caption

Supporters of Republican Sen.-elect Tom Cotton celebrate his win in Arkansas over incumbent Mark Pryor. The GOP picked up seven seats Tuesday, gaining control of the Senate. Justin Sullivan/Getty Images hide caption

Rep. Nick Rahall, D-W.Va., (right) poses with House Speaker John Boehner at the start of his 19th term last year. Rahall is running for re-election in a district that President Obama lost by 32 points in 2012. J. Scott Applewhite/AP hide caption

House Majority Leader Eric Cantor, R-Va., delivers his concession speech as his wife, Diana, listens in Richmond on Tuesday. Steve Helber/AP hide caption

Idaho Republican House candidate Bryan Smith is trying to unseat eight-term GOP Rep. Mike Simpson. The May 20 primary is viewed as a contest of Tea Party vs. establishment. Kim Raff/AP hide caption

North Carolina Republican Senate hopeful Greg Brannon (left) greets Adam Love and his daughter Gwendolyn Love during a campaign event in Charlotte, N.C., on Monday. Chuck Burton/AP hide caption

Florida Democratic congressional candidate Alex Sink, shown working the phone in Clearwater on Nov. 23, supports the Affordable Care Act but has said she would like to see it improved. Steve Nesius/AP hide caption

Saratoga Springs Mayor Mia Love addresses the Utah Republican Party's annual organizing convention in May. Rick Bowmer/AP hide caption