plus, the shocking end to an equally shocking case in saudi arabia. a woman beheaded for witchcraft. i m wolf blitzer, you re in the situation room. just 24 hours ago, the mud was flying between newt gingrich and mitt romney as they campaigned in the first primary state of new hampshire. now gingrich is vowing to run a clean campaign and refrain from initiating the kind of attacks that have come to characterize the modern race for the white house. some question, though, whether newt gingrich means it, whether he can live up to that commitment. joe johns is working the story for us. what are you finding out? well, wolf, the last few days have certainly been ugly, but now both candidates are saying they re going to do what a lot of voters have said they want and that is have a campaign that is free of negativism. of course, newt gingrich, the former speaker of the house running for president has gone as far to put his words actually in writing. though a lot of people out th