There were several memorable exchanges during Wednesday night’s Republican Presidential debate at the Reagan Library in Simi Valley, Calif. -- but one of the most striking came between Texas Governor Rick Perry and NBC’s Brian Williams, who moderated the event.

Under questioning about the death penalty from Williams, Perry said steadfastly that he does not lose sleep over the possibility that his state has executed an innocent man.

Williams began his question by noting to Perry that Texas "has executed 234 death row inmates, more than any other governor in modern times..."