United States Senate

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Protesters hold hands during Moral Tuesday protests at the North Carolina General Assembly, Tuesday, May 27, 2014, in Raleigh, N.C. Fifteen demonstrators seeking repeal of GOP legislative policies shut themselves in House Speaker Thom Tillis’ office for a sit-in Tuesday, but the chamber’s top Republican and U.S. Senate nominee did not answer their calls to meet with them. (AP Photo/The News & Observer, Corey Lowenstein)

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Former New Hampshire Governors Steve Merrill, far left, and Craig Benson, far right, listens as U.S. Sen. Kelly Ayotte, R-N.H. endorses Republican U.S. Senate candidate Scott Brown, standing with his wife Gail, Tuesday, May 27, 2014 in Nashua, N.H. Brown faces former U.S. Sen. Bob Smith, former state Sen. Jim Rubens and conservative activist Karen Testerman, in the GOP primary. (AP Photo/Jim Cole)

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Former New Hampshire Governors Steve Merrill, far left, and Craig Benson, far right, listens as U.S. Sen. Kelly Ayotte, R-N.H. endorses Republican U.S. Senate candidate Scott Brown, standing with his wife Gail, Tuesday, May 27, 2014 in Nashua, N.H. Brown faces former U.S. Sen. Bob Smith, former state Sen. Jim Rubens and conservative activist Karen Testerman, in the GOP primary. (AP Photo/Jim Cole)

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Former New Hampshire Governors Steve Merrill, far left, and Craig Benson, far right, listens as U.S. Sen. Kelly Ayotte, R-N.H. endorses Republican U.S. Senate candidate Scott Brown, standing with his wife Gail, Tuesday, May 27, 2014 in Nashua, N.H. Brown faces former U.S. Sen. Bob Smith, former state Sen. Jim Rubens and conservative activist Karen Testerman, in the GOP primary. (AP Photo/Jim Cole)

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**FILE** U.S. Senate candidate Scott Brown, New Hampshire Republican, speaks after getting the endorsement from former New Hampshire Govs. Steve Merrill (far left) and Craig Benson (far right) and U.S. Sen. Kelly Ayotte (not seen) in Nashua, N.H., on May 27, 2014. Brown is trying to unseat Democratic Sen. Jeanne Shaheen. (Associated Press)

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U.S. Sen. Kelly Ayotte laughs after U.S. Senate candidate Scott Brown comments on her endorsement Tuesday, May 27, 2014, in Nashua, N.H. Ayotte endorsed Brown as the campaign tries to unseat U.S. Sen. Jeanne Shaheen, D-N.H.(AP Photo/Jim Cole)

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FILE- In this May 19, 2014 file photo, demonstrators walk into the Legislative Building during a silent protest for the first "Moral Monday" protest of the new year in Raleigh, N.C. The "Moral Monday" movement has become a de-facto campaign tool for Democrats to publicize their platform and recruit volunteers to help them win elections, especially the contested U.S. Senate race. (AP Photo/Gerry Broome, File)

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U.S. Senate candidate Alison Lundergan Grimes, center, celebrated on stage with husband Andrew Grimes, left, Gov. Steve Beshear, second from right and former Gov. Martha Lane Collins, right, after she gave her victory speech at her primary election night celebration at the Carrick House in Lexington Lexington, Ky., on Tuesday, May 20, 2014. (AP Photo/The Lexington Herald-Leader, Pablo Alcala)

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U.S. Senate candidate Alison Lundergan Grimes gave her victory speech at her primary election night celebration at the Carrick House in Lexington, Ky., on Tuesday, May 20, 2014. (AP Photo/The Lexington Herald-Leader, Pablo Alcala)