President Barack Obama waves to the crowd as he arrives at  

President Barack Obama waves to the crowd as he arrives at  a campaign event at the Summerfest Grounds at Henry Maier Festival Park, Saturday, Sept. 22, 2012, in Milwaukee. (AP Photo/Carolyn Kaster)
Associated Press
President Barack Obama waves to the crowd as he arrives at a campaign event at the Summerfest Grounds at Henry Maier Festival Park, Saturday, Sept. 22, 2012, in Milwaukee. (AP Photo/Carolyn Kaster)
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