[JTM45]

The evidence that's been seen is damning alone and we haven't got a clue what they've got on him that hasn't even seen the light of day yet.
I'm sure there'll be at the very least a few of his minions who'll be stepping over each other to get the best deal for spilling the tea on Donnie in return for leniancy once theyy realize that Don's been lying to them and it isn't, in fact, going to all go away if they all just deny, deny, deny. There's been much speculation that Michael Flynn may have already grabbed a deal. Roger Stone also handed over all the paper work and documentation they subpeona'd him for including his back and forth email communications with Guccifer 2.0, the hacker who hacked into the Democratic Party servers on behalf of the Russian Government.

I personally think there's gonna' be a mountain of documented evidence by the time everything's been gathered together from the many, many subpeona's sent out and witnesses lined up to appear.