Rasmussen is out with a new poll showing that 46% of South Carolina voters think Governor Sanford should resign. That's the best number yet for the embattled Sanford, after two poll yesterday, one from SurveyUSA and one from Politico/Insider Advantage, showed those in favor of Sanford's stepping down at 60% and 50% respectively.  Overall, that's a three poll average of 52%.