Obama back on campaign trail

President Obama holds a campaign event on the apron at Austin Straubel International Airport in Green Bay, Wis.

President Obama salutes as he boards Air Force One before his departure from Andrews Air Force Base outside Washington on Thursday, Nov. 1, 2012. Obama is resuming his campaign with travel to the battleground states of Wisconsin, Colorado, Nevada and Ohio today. (AP Photo/Pablo Martinez Monsivais)

President Obama salutes as he boards Air Force One before his departure from Andrews Air Force Base outside Washington on Thursday, Nov. 1, 2012. Obama is resuming his campaign with travel to the battleground states of Wisconsin, Colorado, Nevada and Ohio today. (AP Photo/Pablo Martinez Monsivais)

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