Republican presidential candidate, former Massachusetts Gov. Mitt Romney is introduced by Sen. 

Republican presidential candidate, former Massachusetts Gov. Mitt Romney is introduced by Sen. Chuck Grassley, R-Iowa, before he speaking about the economy at a campaign rally at Kinzler Construction Services in Ames, Iowa, Friday, Oct. 26, 2012. (AP Photo/Charles Dharapak)
Associated Press
Republican presidential candidate, former Massachusetts Gov. Mitt Romney is introduced by Sen. Chuck Grassley, R-Iowa, before he speaking about the economy at a campaign rally at Kinzler Construction Services in Ames, Iowa, Friday, Oct. 26, 2012. (AP Photo/Charles Dharapak)
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