Republican presidential candidate and former Massachusetts Gov. Mitt Romney, right, waves as 

Republican presidential candidate and former Massachusetts Gov. Mitt Romney, right, waves as he arrives with his wife Ann at a campaign rally, Sunday, Oct. 7, 2012, in Port St. Lucie, Fla. (AP Photo/Lynne Sladky)
Associated Press
Republican presidential candidate and former Massachusetts Gov. Mitt Romney, right, waves as he arrives with his wife Ann at a campaign rally, Sunday, Oct. 7, 2012, in Port St. Lucie, Fla. (AP Photo/Lynne Sladky)
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