U.S. President Obama speaks at a campaign event at the Waterloo Center for the Arts in Iowa

 
U.S. President Obama speaks at a campaign event at the Waterloo Center for the Arts in Iowa
U.S. President Barack Obama speaks at a campaign event at the River Loop Amphitheater at the Waterloo Center for the Arts in Waterloo, Iowa, August 14, 2012. REUTERS/Larry Downing