Republican presidential candidate, former Massachusetts Gov. Mitt Romney greets supporters during a campaign rally in Lancaster, Ohio, Friday, Oct. 12, 2012. (AP Photo/Paul Vernon)

Associated Press
Republican presidential candidate, former Massachusetts Gov. Mitt Romney greets supporters during a campaign rally in Lancaster, Ohio,  Friday, Oct. 12, 2012. (AP Photo/Paul Vernon)
Republican presidential candidate, former Massachusetts Gov. Mitt Romney greets supporters during a campaign rally in Lancaster, Ohio, Friday, Oct. 12, 2012. (AP Photo/Paul Vernon)
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