President Barack Obama calls supporters from a local campaign field office during an unscheduled visit to meet volunteers, Sunday, Oct. 28, 2012 in Orlando, Fla. (AP Photo/Pablo Martine

 

              President Barack Obama calls supporters from a local campaign field office during an unscheduled visit to meet volunteers, Sunday, Oct. 28, 2012 in Orlando, Fla. (AP Photo/Pablo Martine
President Barack Obama calls supporters from a local campaign field office during an unscheduled visit to meet volunteers, Sunday, Oct. 28, 2012 in Orlando, Fla. (AP Photo/Pablo Martinez Monsivais)