The DOJ is the political brain and nervous system of the Federal Government. An absolute ally is critical for all successful Presidents, if for nothing else than to protect their flanks from exactly the sort of crap we are seeing with Mueller and Comey
Kennedy had his own brother, Reagan had Long time friend Meese. Clinton had Reno, and Obama had fellow travelers and loyal ideologues Holder and Lynch. He even made sure his AGs were black
Im surprised Trump missed this, or no one told him
Maybe Trump should have nominated an "absolute ally" like Michael Cohen as AG.
:-P