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President Barack Obama is flanked on stage by musicians Jay-Z, left, and Bruce Springsteen at a campaign event at Nationwide Arena, Monday, Nov. 5, 2012, in Columbus, Ohio. (AP Photo/Carolyn Kaster)

President Barack Obama is flanked on stage by musicians Jay-Z, left, and Bruce Springsteen at a campaign event at Nationwide Arena, Monday, Nov. 5, 2012, in Columbus, Ohio. (AP Photo/Carolyn Kaster)

Obama's campaign trail

Campaign highlights from the road as President Obama travels from state to state in his bid for re-election.