No, he had every right to change his mind after Obama pulled the census report out of his department. That was not in the agreement. It was a gratuitous insult and a real naked powergrab.
Oh, I believe he had every right to change his mind. And I am glad he did. I just don’t recall it happening before and I think (if that is true) that because it is so rare, the insult is to Obama and has much more impact that the media will ever report.