President Barack Obama and first lady Michelle Obama wave to supporter during the final 2012 campaign event in downtown Des Moines, Iowa, Tuesday, Nov. 6, 2012. (AP Photo/Pablo Martinez Monsivais)

Associated Press
President Barack Obama and first lady Michelle Obama wave to supporter during the final 2012 campaign event in downtown Des Moines, Iowa, Tuesday, Nov. 6, 2012. (AP Photo/Pablo Martinez Monsivais)
President Barack Obama and first lady Michelle Obama wave to supporter during the final 2012 campaign event in downtown Des Moines, Iowa, Tuesday, Nov. 6, 2012. (AP Photo/Pablo Martinez Monsivais)
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