
Republican presidential candidate, former Massachusetts Gov. Mitt Romney waves to supporters before speaking at a campaign event at Wisconsin Products Pavilion at State Fair Park, Friday, Nov. 2, 2012, in West Allis, Wisc. (AP Photo/David Goldman)

Republican presidential candidate, former Massachusetts Gov. Mitt Romney gestures as he speaks at a campaign event at Wisconsin Products Pavilion at State Fair Park, Friday, Nov. 2, 2012, in West Allis, Wis. (AP Photo/David Goldman)

Supporters gesture as they chant "four more days" in reference to the upcoming election as Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks at a campaign event at Wisconsin Products Pavilion at State Fair Park, Friday, Nov. 2, 2012, in West Allis, Wis. (AP Photo/David Goldman)

Supporters cheer as Republican presidential candidate, former Massachusetts Gov. Mitt Romney takes the stage for a campaign event at Wisconsin Products Pavilion at State Fair Park, Friday, Nov. 2, 2012, in West Allis, Wis. (AP Photo/David Goldman)

Republican presidential candidate, former Massachusetts Gov. Mitt Romney waves to supporters before speaking at a campaign event at Wisconsin Products Pavilion at State Fair Park, Friday, Nov. 2, 2012, in West Allis, Wic. (AP Photo/David Goldman)

Republican presidential candidate, former Massachusetts Gov. Mitt Romney waves to supporters before speaking at a campaign event at Wisconsin Products Pavilion at State Fair Park, Friday, Nov. 2, 2012, in West Allis, Wic. (AP Photo/David Goldman)

Bill McCoy of Virginia Beach, Va., wears a "Defeat Obama" sticker on his back as he listens to Republican presidential candidate, former Massachusetts Gov. Mitt Romney speak during a campaign event at Farm Bureau Live, Thursday, Nov. 1, 2012, in Virginia Beach, Va. (AP Photo/David Goldman)

A supporter holds up a sign before Republican presidential candidate, former Massachusetts Gov. Mitt Romney takes the stage for a campaign event at Farm Bureau Live, Thursday, Nov. 1, 2012, in Virginia Beach, Va. (AP Photo/David Goldman)

Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a campaign event at Farm Bureau Live, Thursday, Nov. 1, 2012, in Virginia Beach, Va. (AP Photo/David Goldman)