FILE - In this Oct. 7, 2012 file photo, Republican presidential candidate and former Massachusetts Gov. Mitt Romney, and wife Ann, campaign in Port St. Lucie, Fla. Mitt Romney’s campaig

 

              FILE - In this Oct. 7, 2012 file photo, Republican presidential candidate and former Massachusetts Gov. Mitt Romney, and wife Ann, campaign in Port St. Lucie, Fla. Mitt Romney’s campaig
FILE - In this Oct. 7, 2012 file photo, Republican presidential candidate and former Massachusetts Gov. Mitt Romney, and wife Ann, campaign in Port St. Lucie, Fla. Mitt Romney’s campaign is working hard to chip away at President Barack Obama’s advantage among early voters, and there are signs the effort is paying off in North Carolina and Florida, two competitive states that the Republican nominee can ill afford to lose. Obama is doing better in Iowa, another battleground state important to both candidates. (AP Photo/Charles Dharapak, File)