Republican presidential candidate and former Massachusetts Gov. Mitt Romney walks down a hallway as he leaves his hotel to board his motorcade, in Tampa, Fla., Sunday, Oct. 28, 2012, en

 

              Republican presidential candidate and former Massachusetts Gov. Mitt Romney walks down a hallway as he leaves his hotel to board his motorcade, in Tampa, Fla., Sunday, Oct. 28, 2012, en
Republican presidential candidate and former Massachusetts Gov. Mitt Romney walks down a hallway as he leaves his hotel to board his motorcade, in Tampa, Fla., Sunday, Oct. 28, 2012, en route to Ohio for campaign events with his vice presidential running mate, Rep. Paul Ryan, R-Wis. (AP Photo/Charles Dharapak)