In this July 23, 2012 file photo, President Obama gestures at a campaign stop in Oakland, Calif. (AP Photo/Paul Sakuma, File)

Associated Press
In this July 23, 2012 file photo, President Obama gestures at a campaign stop in Oakland, Calif. (AP Photo/Paul Sakuma, File)
In this July 23, 2012 file photo, President Obama gestures at a campaign stop in Oakland, Calif. (AP Photo/Paul Sakuma, File)
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