President Barack Obama speaks, as a tear streams down his face, at his final campaign stop on the evening before the 2012 presidential election, Monday, Nov. 5, 2012, in Des Moines, Iowa. (AP Photo/Carolyn Kaster)

Associated Press
President Barack Obama speaks, as a tear streams down his face, at his final campaign stop on the evening before the 2012 presidential election, Monday, Nov. 5, 2012, in Des Moines, Iowa. (AP Photo/Carolyn Kaster)
President Barack Obama speaks, as a tear streams down his face, at his final campaign stop on the evening before the 2012 presidential election, Monday, Nov. 5, 2012, in Des Moines, Iowa. (AP Photo/Carolyn Kaster)
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