I wouldn't put anything past them. The GOPe is desperate. They know that if Trump is the nominee, the Republican Party will be forever changed. And they will no long be a part of it. No Karl Rove. No Prince Rebus. No Jebbie Bush or any Bush for that matter.
I have no doubt that if Trump becomes nominee, he'll do a massive housecleaning of the Republican Party and it won't be pretty. Well, it might be pretty to us. And about time.