President Barack Obama salutes as he walks down of the steps of Air Force One at Philadelphia International Airport in Philadelphia, Wednesday, July 27, 2016, as he arrives in Philadelphia to speak at... more 
President Barack Obama salutes as he walks down of the steps of Air Force One at Philadelphia International Airport in Philadelphia, Wednesday, July 27, 2016, as he arrives in Philadelphia to speak at the Democratic National Convention. (AP Photo/Susan Walsh) less 
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Associated Press | Photo By Susan Walsh
Wed, Jul 27, 2016 9:42 PM EDT