Republican presidential candidate and former Pennsylvania Sen. Rick Santorum and his wife Karen walk behind a bagpiper at the GOP Ames Straw Poll in Ames, Iowa, Saturday, Aug. 13, 2011. Thousands of Iowa Republicans mingled with presidential hopefuls on a college campus where they began voting Saturday in the Iowa Straw Poll, the first test to see how the candidates trying to unseat President Barack Obama are faring with the GOP base. (AP Photo/Charles Dharapak)