Republican presidential candidate, former Massachusetts Gov. Mitt Romney waves as he speaks to the crowd during a campaign event Tuesday, Oct. 23, 2012, in Henderson, Nev. (AP Photo/Dav

 

              Republican presidential candidate, former Massachusetts Gov. Mitt Romney waves as he speaks to the crowd during a campaign event Tuesday, Oct. 23, 2012, in Henderson, Nev. (AP Photo/Dav
Republican presidential candidate, former Massachusetts Gov. Mitt Romney waves as he speaks to the crowd during a campaign event Tuesday, Oct. 23, 2012, in Henderson, Nev. (AP Photo/David Goldman)