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Photo by: Charles Dharapak

Republican presidential candidate, former Massachusetts Gov. Mitt Romney campaigns in Tampa, Fla., Wednesday, Oct. 31, 2012. Behind him, from left are, former Florida Gov. Jeb Bush, Sen. Marco Rubio, R-Fla., and Florida Republican Senate candidate, Rep. Connie Mack, R-Fla. (AP Photo/Charles Dharapak)

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