President Obama walks from the White House to Marine One on Oct. 24, 2012, en route to Andrews Air Force Base, Md., then onto campaign events in Iowa, Colorado, California and Nevada. (Associated Press)
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President Obama walks from the White House to Marine One on Oct. 24, 2012, en route to Andrews Air Force Base, Md., then onto campaign events in Iowa, Colorado, California and Nevada. (Associated Press)
