President Barack Obama greets supporters at the office of Teamsters local 633 in Manchester, N.H., during an unscheduled visit to Saturday, Oct. 27, 2012. (AP Photo/Pablo Martinez Monsi

 

              President Barack Obama greets supporters at the office of Teamsters local 633 in Manchester, N.H., during an unscheduled visit to Saturday, Oct. 27, 2012. (AP Photo/Pablo Martinez Monsi
President Barack Obama greets supporters at the office of Teamsters local 633 in Manchester, N.H., during an unscheduled visit to Saturday, Oct. 27, 2012. (AP Photo/Pablo Martinez Monsivais)