President Barack Obama waves to supporters as he arrives at the Charlotte/Douglas International Airport for the Democratic National Convention in Charlotte, N.C., Wednesday, Sept. 5, 2012. (AP Photo/Chuck Burton)

Associated Press
President Barack Obama waves to supporters as he arrives at the Charlotte/Douglas International Airport for the Democratic National Convention in Charlotte, N.C., Wednesday, Sept. 5, 2012. (AP Photo/Chuck Burton)
President Barack Obama waves to supporters as he arrives at the Charlotte/Douglas International Airport for the Democratic National Convention in Charlotte, N.C., Wednesday, Sept. 5, 2012. (AP Photo/Chuck Burton)
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