2012 ad blitz: big money, smaller audience

Associated Press
2012 ad blitz: big money, smaller audience

A woman holds a U.S. flag as she and others listen to a speech by Republican presidential candidate, former Massachusetts Gov. Mitt Romney, during a campaign rally in Greenwood Village, Colo. in south Denver on Saturday, Nov. 3, 2012. (AP Photo/Brennan Linsley)

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