PHOTOS: President Obama in Chicago to cast vote early

1 of 25: President Barack Obama dials a phone number as he makes calls at a local campaign office during an unscheduled stop, Thursday, Oct. 25, 2012, in Chicago. The president flew to Chicago to cast his vote, during early voting, in the 2012 election. (AP Photo/Pablo Martinez Monsivais) (AP Photo/ Pablo Martinez Monsivais)

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