Republican presidential candidate former Massachusetts Gov. Mitt Romney, right, is greeted by running mate Rep. Paul Ryan, R-Wis., at the start of a rally, Tuesday, Oct. 23, 2012, in He

 

              Republican presidential candidate former Massachusetts Gov. Mitt Romney, right, is greeted by running mate Rep. Paul Ryan, R-Wis., at the start of a rally, Tuesday, Oct. 23, 2012, in He
Republican presidential candidate former Massachusetts Gov. Mitt Romney, right, is greeted by running mate Rep. Paul Ryan, R-Wis., at the start of a rally, Tuesday, Oct. 23, 2012, in Henderson, Nev. Fresh off the presidential debate in Florida, Romney and Ryan were making their first joint appearance in Nevada before heading to Denver for another campaign stop. (AP Photo/Julie Jacobson)