Perjury is not disagreement.
Scooter might disagree. He was charged for lying because recollection disagreed with Robert Novak(?).
Then the FBI gets to decide which fish they want to fry? Scooter was the obvious choice because they wanted Cheney
Yes, but when you have a disagreement about the facts, you can say one of the statements is not true. (Hence perjury, which is not disagreement, but is a felony. \
Note that I am not saying Trump will be the one who is committing perjury, in actuallity they hate him so much that they could be lying and Mueller will still have his “case”.
I would hope very much that Trump does not take the interview with Mueller.