It helps if you are guilty, but with our criminal justice system guilt is not required for conviction.
It certainly is helpful that Trump can fund a very good defense and maybe even an offense. Mueller seems dirty to me, entirely to close to Comey. I've been a defender of Session but his decision to recuse was horrible. Just horribly stupid, he better get control over his Justice Department.
Sessions saw the Russian collusion issue as politically motivated and didn’t want to be bothered by it. He figured (like most people) it was a “nothing-burger” and so recused himself.
Just like Hillary’s emails didn’t amount to much, this Russian issue seemed to go nowhere. Why waste any energy on it?
My beef with Sessions is that he never discussed his recusal with Trump.