Not a lawyer here, but it’s obvious that Mueller is cagey. You don’t get where he got in D.C. without knowing how protect one’s self. He isn’t going to say anything beyond what he said in his report. The Dems will try to play their word-games with him and attempt to characterize a re-wording as “something new”! But it won’t stand up to analysis as the News cycle grinds on.
Of course the whole thing is a gigantic farce, and not even an entertaining one.
I hope Mueller does something like this: “Yes, Congressman, in answer to your question let me direct you to page 145 of the report, second paragraph down. Do you have it there? Do the members have their copies? Okay, I’ll read it nice and slow so the committee can follow along...”
Now, the really entertaining thing would be if Nadler tries to hold Mueller in contempt.