This time, it is my belief that Bush -- unlike Reagan before him -- will not blink. He will not let Fielding strike a deal, as Fielding did for Reagan. Rather, Bush feels that he has his manhood on the line. He knows what his conservative constituency wants: a strong president who protects his prerogatives. He believes in the unitary executive theory of protecting those prerogatives, and of strengthening the presidency by defying Congress.
In short, all those who have wanted to see Karl Rove in jail may get their wish, for he will not cave in, either -- and may well be prosecuted for contempt, as Gorsuch was not. Bush's greatest problem here, however, is Harriett Miers. It is dubious he can exert any privilege over a former White House Counsel; I doubt she is ready to go to prison for him; and all who know her say if she is under oath, she will not lie. That could be a problem.