United States Senate

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Democratic U.S. Senate candidate and former Virginia Governor Tim Kaine sits in an Adirondack chair built by apprentices, as he takes a tour of the Alexandria Seaport Foundation in Alexandria, Va., Thursday, Nov. 1, 2012. The Alexandria Seaport Foundation is a ship building apprenticeship program for at-risk youths on the waterfront in Old Town, Alexandria, Va. (Rod Lamkey Jr./The Washington Times)

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**FILE** Claire McCaskill (left), gives the thumbs up to supporters as she holds the hand of her mother, Betty Anne McCaskill, after participating in a debate for U.S. Senate candidates against incumbent Sen. Jim Talent at Clayton High School in Clayton, Mo., on Oct. 11, 2006. (Associated Press)

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** FILE ** Then Democratic U.S. Senate candidate Elizabeth Warren speaks during a campaign event at University of Massachusetts-Boston, Friday, Oct. 26, 2012. (AP Photo/Elise Amendola)

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Republican candidate for U.S. Senate, Ohio Treasurer Josh Mandel, accuses incumbent Sherrod Brown of being a “bail-out senator” for supporting the bank- and auto-industry rescues. He also said Thursday that Mr. Brown supports using American tax dollars “as welfare for foreign countries that harbor terrorists.” (Andrew Harnik/The Washington Times)

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Democratic incumbent Sen. Sherrod Brown of Ohio talks with supporters after a U.S. Senate debate with his opponent, Ohio Treasurer Josh Mandel, at WCET-TV Studios in Cincinnati on Thursday. (Andrew Harnik/The Washington Times)

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Republican candidate for U.S. Senate State Treasurer Josh Mandel (R) talks with supporters following a U.S. Senate debate with his opponent Sen. Sherrod Brown (D-Ohio) at WCET-TV Studios, Cincinnati, Ohio, Thursday, October 25, 2012. (Andrew Harnik/The Washington Times)

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Republican candidate for U.S. Senate State Treasurer Josh Mandel (R) talks with supporters following a U.S. Senate debate with his opponent Sen. Sherrod Brown (D-Ohio) at WCET-TV Studios, Cincinnati, Ohio, Thursday, October 25, 2012. (Andrew Harnik/The Washington Times)

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Democratic candidate for U.S. Senate Sen. Sherrod Brown (D-Ohio) talks with supporters following a U.S. Senate debate with his opponent State Treasurer Josh Mandel (R) at WCET-TV Studios, Cincinnati, Ohio, Thursday, October 25, 2012. (Andrew Harnik/The Washington Times)

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Supporters for U.S. Senate candidates Sen. Sherrod Brown (D-Ohio) and State Treasurer Josh Mandel (R) spare off during a heated rally outside the WCET-TV Studios where the candidates are set to debate each other, Cincinnati, Ohio, Thursday, October 25, 2012. (Andrew Harnik/The Washington Times)

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Donna Porter Jones with the Sherrod Brown campaign rallies along with dozens of heated supporters for both U.S. Senate candidates Sen. Sherrod Brown (D-Ohio) and State Treasurer Josh Mandel (R) outside the WCET-TV Studios where the candidates are set to debate each other, Cincinnati, Ohio, Thursday, October 25, 2012. (Andrew Harnik/The Washington Times)

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Supporters for U.S. Senate candidates Sen. Sherrod Brown (D-Ohio) and State Treasurer Josh Mandel (R) spare off during a heated rally outside the WCET-TV Studios where the candidates are set to debate each other, Cincinnati, Ohio, Thursday, October 25, 2012. (Andrew Harnik/The Washington Times)

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Supporters for U.S. Senate candidates Sen. Sherrod Brown (D-Ohio) and State Treasurer Josh Mandel (R) spare off during a heated rally outside the WCET-TV Studios where the candidates are set to debate each other, Cincinnati, Ohio, Thursday, October 25, 2012. (Andrew Harnik/The Washington Times)

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Rob Sobhani (right), an independent candidate for U.S. Senate from Maryland, greets Elinor and Hal Ozkaptan (center) along the downtown harbor in Annapolis on Wednesday, Oct. 17, 2012. (Andrew Harnik/The Washington Times)

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Rob Sobhani (center), an independent candidate for U.S. Senate from Maryland, poses for a cellphone photo with Brian Phipps (left) of Arnold, Md., as Mr. Sobhani greets voters along the downtown harbor in Annapolis on Wednesday, Oct. 17, 2012. (Andrew Harnik/The Washington Times)