Republican presidential candidate and former Massachusetts Gov. Mitt Romney and wife Ann campaign at Tradition Town Square in Port St. Lucie, Fla., Sunday, Oct. 7, 2012. (AP Photo/Charl

 

              Republican presidential candidate and former Massachusetts Gov. Mitt Romney and wife Ann campaign at Tradition Town Square in Port St. Lucie, Fla., Sunday, Oct. 7, 2012. (AP Photo/Charl
Republican presidential candidate and former Massachusetts Gov. Mitt Romney and wife Ann campaign at Tradition Town Square in Port St. Lucie, Fla., Sunday, Oct. 7, 2012. (AP Photo/Charles Dharapak)