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PHILADELPHIA - OCTOBER 10: U.S. Vice President Joe Biden laughs after President Obama remarked that he looked cool in his sunglasses at the Moving America Forward rally October 10, 2010 in Philadelphia, Pennsylvania. Obama and Biden are urging Democrats to come out and vote in the November 2, 2010 general election. (Photo by William Thomas Cain/Getty Images)
PHILADELPHIA - OCTOBER 10: U.S. Vice President Joe Biden laughs after President Obama remarked that he looked cool in his sunglasses at the Moving America Forward rally October 10, 2010 in Philadelphia, Pennsylvania. Obama and Biden are urging Democrats to come out and vote in the November 2, 2010 general election. (Photo by William Thomas Cain/Getty Images)

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