In the final hours of a four-state campaign day, President Barack Obama greets supporters at a rally at Jiffy Lube Live arena, late Saturday night, Nov. 3, 2012, in Bristow, Va. Virginia is one of the most closely contested battleground states. (AP Photo/J. Scott Applewhite)

Associated Press
In the final hours of a four-state campaign day, President Barack Obama greets supporters at a rally at Jiffy Lube Live arena, late Saturday night, Nov. 3, 2012, in Bristow, Va. Virginia is one of the most closely contested battleground states.  (AP Photo/J. Scott Applewhite)
In the final hours of a four-state campaign day, President Barack Obama greets supporters at a rally at Jiffy Lube Live arena, late Saturday night, Nov. 3, 2012, in Bristow, Va. Virginia is one of the most closely contested battleground states. (AP Photo/J. Scott Applewhite)