Perjury by the FBI and Whitehouse staffers was admitted to. Misleading the FISA court on at least 16 occasions. If anyone cared about the law, the FISA court judges should have issued bench warrants for those who swore to false facts in affidavits presented to the court.
Those judges green-lighted the whole operation, Crossfire Hurricane. It shouldn't take John Durham to do the job the FISA court judges are supposed to be doing.