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AUGUST 14 -- Supporters cheer President Barack Obama during his... News Photo2012 United States Presidential Election,August,Barack Obama,Democracy,Election,Hope,Horizontal,Human Interest,Iowa,Presidential Election,Speech,Supporter,US President,USA,United States Presidential Election,Waterloo - IowaPhotographer Collection: The Washington Post 2012 The Washington PostWATERLOO, IOWA: AUGUST 14 -- Supporters cheer President Barack Obama during his speech along the campaign trail during a stop at RiverLoop Amphitheatre, Waterloo Center for the Arts in Waterloo, Iowa, on Tuesday, August 14, 2012. (Photo By Nikki Kahn/The Washington Post via Getty Images)