Mark Sanford cheated on his wife with another woman (surprising it wasn't a man). He violated the vows in his marriage and looking at Sanford's relationship with his wife now, it looks like they may be getting a divorce in the future. If that were to happen, I guarantee you, NOBODY from pro-traditional marriage groups will come out against M. Sanford and condemn him like they do to gay individuals. It's hypocrisy at it's finest and I'm surprised nobody has in the main stream media, made that connection.
On the issue of Bill Clinton, that's clear as a bell. Sanford should resign from his position and apologize to Bill Clinton for his comments during the Lewinsky issue. Complete and utter hypocrisy and that's the Republican motto.