Republican presidential candidate and former Massachusetts Gov. Mitt Romney steps off his campaign plane in Tampa, Fla., Tuesday, Oct. 30, 2012. (AP Photo/Charles Dharapak)

 

              Republican presidential candidate and former Massachusetts Gov. Mitt Romney steps off his campaign plane in Tampa, Fla., Tuesday, Oct. 30, 2012. (AP Photo/Charles Dharapak)
Republican presidential candidate and former Massachusetts Gov. Mitt Romney steps off his campaign plane in Tampa, Fla., Tuesday, Oct. 30, 2012. (AP Photo/Charles Dharapak)