They are worried about Durham. Lays out a pretty good timeline of reported information on the investigation. Forced to admit they really don't know what is happening outside of DC resistance.
https://www.lawfareblog.com/durham-investigation-what-we-know-and-what-it-means
He knows what he is doing is contrary to the rules and traditions of the Justice Department. He knows he is doing reputational harm to people nominally under investigation. He must know that the way he is comporting himself does damage to the department and will make whatever Durham finds more contestable than it otherwise would have been. In short, Barr has acted in ways that foreseeably politicize and damage the investigation that he initiated and has devoted so much time to. The question is: Why?
One possibility is that the evidence Durham has uncovered is objectively so damning that Barr’s commentary cannot delegitimize it. Perhaps, but we doubt it. No matter what problems Durham finds, assuming he finds some, they will be tainted due to the combined behavior of the president (who might not know better and who cannot control himself) and the attorney general (who does know better and can control himself but has chosen not to). If Barr and Durham have an October (or earlier) surprise, Barr’s actions now are diminishing its impact.