Republican candidate for Arizona Congressional District 2 Martha McSally speaks at a news conference the morning after the election. McSally's race against Democrat Ron Barber is so close it triggered a recount.
Ross D. Franklin/AP
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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
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Sen. Mark Udall, D-Colo. delivers his concession speech to Democratic supporters at the Colorado Democrats election night party, Tuesday in Denver.
Jack Dempsey/AP
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Former Secretary of State Hillary Clinton campaigned for Maryland Democratic gubernatorial candidate Anthony Brown (right) in October. President Obama and Michelle Obama have also campaigned in the state. This level of Democratic star power so late in the race is unusual in a reliably blue state.
Patrick Semansky/AP
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Then-Senate Minority Leader Bob Dole of Kansas was all smiles after Republicans took over the Senate in an eight-seat rout in 1994.
John Duricka/AP
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Florida Democratic gubernatorial candidate Charlie Crist, center, gets a kiss from a supporter after he stepped off his bus during a brief campaign stop at Delevoe Park in Fort Lauderdale, Fla., on Oct. 25.
Wilfredo Lee/AP
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Loretta Lynch, U.S. attorney for the Eastern District of New York, speaks during an April news conference in New York. Lynch is now a leading favorite to replace Eric Holder as U.S. attorney general.
Seth Wenig/AP
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Laney Barroll Stark, of Savannah, Ga., took a picture with her cell phone as Rep. Jack Kingston, who ran for the Republican nomination for U.S. Senate in Georgia, addressed supporters at his primary runoff election night party in July.
David Goldman/AP
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It's a long shot, but there's a scenario where control of the Senate might not be known until Jan. 6 — three days after the start of the next Congress. That's when Republican David Perdue and Democrat Michelle Nunn will face each other in a Georgia runoff if one of them fails to win 50 percent on Tuesday.
David Tulis/AP
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Senate Minority Leader Mitch McConnell of Kentucky waves while riding with his wife Elaine Chao in the Hopkins County Veterans Day Parade on Sunday in Madisonville. McConnell remains locked in a close race with Democratic Senate candidate Alison Lundergan Grimes.
Win McNamee/Getty Images
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President Obama stands with Connecticut Gov. Dan Malloy in Bridgeport on Sunday. Malloy is in a tough re-election battle with Republican Tom Foley. The president spent the weekend trying to energize the Democratic base to get out and vote in Tuesday's midterm elections.
Spencer Platt/Getty Images
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Rep. Cathy McMorris Rodgers of Washington gave the GOP response to President Obama's State of the Union address in 2014. She's set to easily win re-election to a sixth term next week.
Susan Walsh/AP
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Texas lieutenant governor hopefuls state Sen. Dan Patrick and state Sen. Leticia Van de Putte shake hands following a September debate. While most eyes are on the governor's race, this contest could have even more political consequence.
Eric Gay/AP
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Spending on next week's elections is approaching $4 billion, according to an analysis by the nonpartisan Center for Responsive Politics.
Center for Responsive Politics
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Senate Republican leader Mitch McConnell tells Fox News' Neil Cavuto that a repeal of the Affordable Care Act will still not be possible under a Republican Senate.
Fox News
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The flier sent to Montana voters by political scientists at Stanford University and Dartmouth College to study voter interest in nonpartisan races. Fliers were also sent to voters in California and New Hampshire.
Stanford University/Dartmouth College
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Stanford University/Dartmouth College
A ballot measure in Maine over bear-baiting has drawn ads from both sides of the debate, including this one from the Maine Wildlife Conservation Council, which opposes the measure.
Maine Wildlife Conservation Council/YouTube
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Illinois state Rep. Mike Bost argues about gun legislation in 2013. Bost's angry rants have become a campaign issue in his race against Democratic Rep. Bill Enyart for Enyart's U.S. House seat.
Seth Perlman/AP
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In her revised dissent, Justice Ruth Bader Ginsburg clarified that photo ID cards issued by the Veterans' Affairs are "an acceptable form of photo identification for voting in Texas."
Cliff Owen/AP
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