Huckabee comes out and says he was going to have a new campaign ad but has changed his mind.  Too bad it's so easy to see through.  His "changing" his mind is the new campaign.  The whole thing was constructed to try to let Huckabee pretend he's above it all and better than that, etc.  The new campaign was never going to be his anti-Romney ad, there was no Huckabee-change-of-heart, from the beginning it was always constructed to let Huckabee reject his own ad.