Barack Obama

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Nevada delegate and National co-chair of the Re-elect Obama campaign, Loretta Harper, listens to speeches at the Democratic National Convention. (Barbara Salisbury/ The Washington Times)

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President Obama speaks during a campaign event at Norfolk State University, Tuesday, Sept. 4, 2012, in Norfolk, Va. (AP Photo/Pablo Martinez Monsivais)

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Edith Child of Greenwood, S.C., is shown leading the campaign chant “Fired Up, Ready To Go” with Democratic presidential candidate Barack Obama in 2008. She remains a strong supporter. (Associated Press)

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**FILE** Then-presidential candidate Sen. Barack Obama, Illinois Democrat, addresses supporters during a rainstorm at a Oct. 28, 2008, rally in Chester, Pa. (Associated Press)

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President Barack Obama waves as he boards Air Force One before his departure from Andrews Air Force Base, Md., Tuesday, Sept., 4, 2012. (AP Photo/Pablo Martinez Monsivais)

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Mississippi delegate and volunteer for the Obama campaign, Kelly Jacobs, who calls herself "The Mistress of Enthusiasm" has her photograph taken at the Charlotte Convention Center. (Barbara Salisbury/ The Washington Times)

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President Barack Obama, center, jokes with Sen. Michael Bennet, Colorado Democrat, left, and Colorado Gov. John Hickenlooper after Obama's campaign stop on the campus of the University of Colorado in Boulder, on Sunday, Sept. 2, 2012. (AP Photo/David Zalubowski)