Barack Obama 2012

Associated Press
FILE - In this May 12, 2011, file photo, volunteers make signs at President Barack Obama's 2012 re-election campaign headquarters during a media tour of the new facility in Chicago. With Republicans locked in a contentious and expensive primary, Obama has spent a small fortune to build and maintain a campaign operation that’s larger, more diverse and more focused on the general election than any of his opponents’ organizations. Republican contenders like Mitt Romney have been closely watching their expenses during the primary campaign. But Obama faces no serious challenger for the Democratic nomination. He has sunk much of his cash into an expansive brick-and-mortar operation with offices in nearly every state. (AP Photo/M. Spencer Green, File)

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In November, President Barack Obama faces off against the Republican Party nominee, Mitt Romney.

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