I suspect that one of two things is true of Robert Mueller:
1. Mueller was a good guy all along. As FBI director, Mueller knew what the Obama team was doing, but the power to do anything about it rested with his crooked DOJ bosses. Or,
2. Mueller was a bad guy and flipped. Once exposed, always exposed unless he flipped, Mueller was offered a choice by Trump to do the right thing. We tend to think that flips only work against us, but Trump is smarter and tougher than our typical leaders and does what he says he will do.
The result would be the same, regardless, with an exaggeratedly stacked counsel of Clinton lawyers hell bent on nailing Trump for a crime for which there is no evidence - while DOJ quietly investigates unsuspecting conspirators who are still doing their deeds on the government payroll, in government offices via government communications.
Time will tell.
Mueller is NOT a white hat. He’s a weak man and a political windvane. He approved and reinforced gutting the FBI’s effective and honest counter-jihad training, firing the honest men, and literally bringing in CAIR reps to “train” FBI agents on the “peaceful religion of Islam.” FBI agents were forbidden to watch mosques, not even their parking lots to keep track of “visiting (jihad) imams.” The result was Boston, San Bernadino, Orlando, etc.
MUELLER is a BAD MAN.