Mitt Romney

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Supporters of Republican presidential candidate, former Massachusetts Gov. Mitt Romney and vice presidential running mate Rep. Paul Ryan, R-Wis., take photos from a balcony during a campaign rally on Friday, Oct. 19, 2012 in Daytona Beach, Fla. (AP Photo/ Evan Vucci)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, left, and his vice presidential running mate Rep. Paul Ryan, R-Wis., wave to supporters after arriving on stage during the Romney Ryan Victory Rally in Daytona Beach, Fla., Friday, Oct. 19, 2012. 3(AP Photo/Phelan M. Ebenhack)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, left, speaks as vice presidential running mate Rep. Paul Ryan, R-Wis., watches on during a campaign rally on Friday, Oct. 19, 2012 in Daytona Beach, Fla. (AP Photo/ Evan Vucci)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, rear left, watches vice presidential running mate Rep. Paul Ryan, R-Wis., speak during a campaign rally on Friday, Oct. 19, 2012 in Daytona Beach, Fla. (AP Photo/ Evan Vucci) **FILE**

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, right, and his vice presidential running mate Rep. Paul Ryan, R-Wis., wave to supporters as they walk on stage for the Romney Ryan Victory Rally in Daytona Beach, Fla., Friday, Oct. 19, 2012. (AP Photo/Phelan M. Ebenhack)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, center, talks with foreign policy adviser Dan Senor, left, and his vice presidential running mate, Rep. Paul Ryan, R-Wis., before boarding his campaign plane at Daytona International Airport, Saturday, Oct. 20, 2012, in Daytona Beach, Fla. (AP Photo/ Evan Vucci)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney steps off his campaign plane at Palm Beach International Airport, Saturday, Oct. 20, 2012, in Daytona Beach, Fla. (AP Photo/ Evan Vucci)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, left, and vice presidential running mate Rep. Paul Ryan, R-Wis., wave to the crowd as fireworks go off during a campaign rally on Friday, Oct. 19, 2012 in Daytona Beach, Fla. (AP Photo/ Evan Vucci)

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Enthusiasm is a strong point for Republican presidential nominee Mitt Romney, who rallied supporters last week in Virginia, a state that could very well determine the election outcome. (Barbara L. Salisbury/The Washington Times)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, center, talks with foreign policy adviser Dan Senor, left, and his vice presidential running mate, Rep. Paul Ryan, R-Wis., before boarding his campaign plane at Daytona International Airport, Saturday, Oct. 20, 2012, in Daytona Beach, Fla. (AP Photo/ Evan Vucci)

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Republican presidential candidate Mitt Romney speaks before the start of a flag football game between his staff and reporters covering his campaign on Oct. 21, 2012 in Delray Beach, Fla. Romney took a short break from debate preparations to do the opening coin toss, and watch the first play of the game. (Associated Press)

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Republican presidential candidate Mitt Romney leaves the Church of Jesus Christ of Latter-day Saints after services on Sunday, Oct. 21, 2012, in Boca Raton, Fla. (AP Photo/Evan Vucci)