The usual suspects
I have a very bad feeling about all this. No matter what the investigations turn up, or how compelling the evidence is, as long as his base and his party show the same determination to cover up and make excuses for him, the Trump Administration will get away with it.
These people are getting everything they've ever wanted, and they now control all the instruments of justice. And from what we've seen in their behavior so far, they simply will do nothing regardless of what is revealed.
Its like trying to debate a Southern Baptist.