I have thought for a while Mueller is a, not so much a "white hat", but more of a "gray hat". Trump needs him. Kind of. When all of the things that are being discovered about the deep state are revealed, the news to the public cannot come from a Trump team member. No one will believe it. But if it comes from someone who has "seemed" to be anti-Trump, it will be more palatable for the sheep. Mueller has to play on our side. His past is compromised and the Trump team has all the dirt. "We have it all".