FILE - In this Sept. 1, 2012 file photo, Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a campaign rally in Cincinnati, Ohio. This year, the pres

 

              FILE - In this Sept. 1, 2012 file photo, Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a campaign rally in Cincinnati, Ohio. This year, the pres
FILE - In this Sept. 1, 2012 file photo, Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a campaign rally in Cincinnati, Ohio. This year, the presidential race may come down to an even narrower slice of the electorate than simply the nine states where both Obama and Romney are aggressively competing: Florida, Ohio, Virginia, Colorado, Iowa, Nevada, New Hampshire, North Carolina and Wisconsin. (AP Photo/Evan Vucci, File)