FILE - This Oct. 25, 2012 file photo shows President Barack Obama speaks in front of Air Force One at a campaign event at Burke Lakefront Airport in Cleveland. President Barack Obama's

 

              FILE - This Oct. 25, 2012 file photo shows President Barack Obama speaks in front of Air Force One at a campaign event at Burke Lakefront Airport in Cleveland. President Barack Obama
FILE - This Oct. 25, 2012 file photo shows President Barack Obama speaks in front of Air Force One at a campaign event at Burke Lakefront Airport in Cleveland. President Barack Obama's and Mitt Romney's meticulously arranged travel schedules, a crucial element of their final-stretch strategies, could be upended in the last full week before Election Day by a super storm barreling toward some battleground states. (AP Photo/Tony Dejak, File)