South Dakota Senator John Thune gestures to the delegates during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/Charles Dharapak)

 

              South Dakota Senator John Thune gestures to the delegates during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012.  (AP Photo/Charles Dharapak)
South Dakota Senator John Thune gestures to the delegates during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/Charles Dharapak)