This image provided by Romney For President, Inc. shows a still frame made from a video ad entitled "12 Million Jobs." One analysis estimates the campaigns and independent groups will have spent about $1.1 billion on television advertising this year, with $750 million already allocated in states likely to determine the outcome of the presidential contest. (AP Photo/Romney for President, Inc.)

Photo by: Uncredited

This image provided by Romney For President, Inc. shows a still frame made from a video ad entitled "12 Million Jobs." One analysis estimates the campaigns and independent groups will have spent about $1.1 billion on television advertising this year, with $750 million already allocated in states likely to determine the outcome of the presidential contest. (AP Photo/Romney for President, Inc.)