I just look at the relationships between all these people. Rosenstein, Sessions, Barr, Mueller, Wray, Guiliani  have all worked with each other and have mutual respect for each other. Wray even had even had Weissman working under him at the DOJ and gave him glowing reviews. Weissman may have been in on the sting to root out the bad apples in the doj. Comey is also connected with them. I don't know if this means that he flipped or what. Yep, it's a movie. We just don't know which parts of it are true and which parts of it are for misdirection.