Politics

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In this Thursday Aug. 2, 2012 photograph, Syrian rebel fighters man an improvised checkpoint in a suburb of Damascus, Syria. (AP Photo)

U.S. Secretary of State Hillary Rodham Clinton, left, waves to the media after meeting with Kenya President Mwai Kibaki at the State House, in Nairobi, Kenya, on Saturday, Aug. 4, 2012. (AP Photo/Jacquelyn Martin, Pool)

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Republican presidential candidate and former Massachusetts Gov. Mitt Romney campaigns at Stepto's BBQ Shack in Evansville, Ind., Saturday, Aug. 4, 2012. (AP Photo/Charles Dharapak)

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Anastasia Pavlyuchenkova, of Russia, hits a return against Vania King during the Citi Open tennis tournament on Friday, Aug. 3, 2012, in Washington. (AP Photo/Evan Vucci)

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President Barack Obama talks abut taxes, Friday, Aug. 3, 2012, in the Eisenhower Executive Office Building on the White House campus in Washington. (AP Photo/J. Scott Applewhite)

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** FILE ** President Barack Obama speaks in the East Room of the White House in Washington, Monday, July 9, 2012. (AP Photo/Susan Walsh)

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** FILE ** In this file photo taken on March 16, 2011, Cass Sunstein, director of the Office of Information and Regulatory Affairs at the Office of Management and Budget, poses for a photo at the Eisenhower Executive Office Building across from the White House in Washington. (AP Photo)