Article Photos: All day, all night: Obama's long search for votes



President Barack Obama greets supporters on the tarmac upon his arrival on Air Force One at McCarran International Airport, Wednesday, Oct. 24, 2012, in Las Vegas. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama greets supporters on the tarmac upon his arrival on Air Force One at McCarran International Airport, Wednesday, Oct. 24, 2012, in Las Vegas. (AP Photo/Pablo Martinez Monsivais)