Barr was in his own way every bit as bad as Sessions. He slow walked anything that would have hurt the rats, ran out the clock and waited until it was too late for anyone to step in and do anything and then left. A riino/rat soldier of the worst kind.
Barr was more fundamentally corrupt than Sessions. CIA drug running, 9/11 and other Bush coverups, etc.
Trump has been such a breath of fresh air where everybody is not covering for everybody else and no one wants to make waves or upset the apple cart. He points them out or corners them into exposing themselves in public for all to see.
But he's only been able to do this at his own peril. The cockroaches still scurry when he turns the lights on. Good for him.