President Barack Obama waves to supporters after speaking at a campaign event on Monday, Oct. 8, 2012, in San Francisco. (AP Photo/Noah Berger)

 

              President Barack Obama waves to supporters after speaking at a campaign event on Monday, Oct. 8, 2012, in San Francisco. (AP Photo/Noah Berger)
President Barack Obama waves to supporters after speaking at a campaign event on Monday, Oct. 8, 2012, in San Francisco. (AP Photo/Noah Berger)