[cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2009/images/06/25/bill.bennet.2.cnn.jpg caption="CNN political contributor Bill Bennett says Sanford's affair is hurtful to the GOP."] Governor Mark Sanford was a rising Republican star before yesterday's stunning admission that he was having an affair. But does his bad behavior reflect on the Republican Party as whole? Is there a credibility issue? Bill Bennett is a CNN … Continue reading Bennett: Sanford affair hurtful to Republican Party