They know he has been at least partially successful in his attempts to curtail some of President Trump’s deviations from script. CNN wants MORE deviations from script, so they go after Kelly as often as they can.
That may be true, but they were REALLY after him this morning...I think it’s more than that. They usually are saying he’s the only “adult” in the WH...not they’re full on “he needs to go” because of what he allegedly knew about the domestic abuse of Trump’s secretary.