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 gestures while speaking at a campaign event at Austin Straubel International Airport in Green Bay, Wis., on Thursday, Nov. 1, 2012. Mr. Obama resumed his presidential campaign with travel to the key battleground states of Wisconsin, Colorado, Nevada and Ohio today. (AP Photo/Pablo Martinez Monsivais)

President Obama gestures while speaking at a campaign event at Austin Straubel International Airport in Green Bay, Wis., on Thursday, Nov. 1, 2012. Mr. Obama resumed his presidential campaign with travel to the key battleground states of Wisconsin, Colorado, Nevada and Ohio today. (AP Photo/Pablo Martinez Monsivais)

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