President Barack Obama walks on stage as he is introduced to supporters during a campaign event at McArthur High School, Sunday, Nov. 4, 2012, in Hollywood, Fla. <AP Photo/Pablo Martinez Monsivais>
President Barack Obama speaks during a campaign event at McArthur High School in Hollywood, Fla. Sunday, Nov. 4, 2012. <AP Photo/Terry Renna>
Republican presidential candidate and former Massachusetts Gov. Mitt Romney campaigns at the International Exposition Center in Cleveland, Sunday, Nov. 4, 2012.
Mitt Romney walks out on stage as he campaigns at Iowa Events Center, in Des Moines, Iowa, Sunday, Nov. 4, 2012. <AP Photo/Charles Dharapak>
