They are backstabbers. Don’t think for a moment you can trust them. If the Tea Party candidates lose, they will be all over that, gloating.
Consultants like Rove have a conflict of interest. It's to his direct benefit that Christine O'Donnell lose to validate his prognostication skills. My sense is he'll be undercutting her every way he can to make it as difficult as possible for her.
I hope O'Donnell runs ads about how she ran against the party bosses and won. I think they would resonate in this political environment.