President Barack Obama greets supporters on the tarmac upon his arrival aboard Air Force One at the Quad Cities International Airport, Wednesday, Oct. 24, 2012, in Moline, Ill. , as the

 

              President Barack Obama greets supporters on the tarmac upon his arrival aboard Air Force One at the Quad Cities International Airport, Wednesday, Oct. 24, 2012, in Moline, Ill. , as the
President Barack Obama greets supporters on the tarmac upon his arrival aboard Air Force One at the Quad Cities International Airport, Wednesday, Oct. 24, 2012, in Moline, Ill. , as the president began a two-day campaign blitz, through eight states with stops in key battleground areas of Iowa, Colorado, Nevada, Ohio and Virginia. (AP Photo/Pablo Martinez Monsivais)