The Great Goose I don't think there's much they can do honestly. He sells his name, it's practically bulletproof. If he manages to improve America, even just a little bit in the next four years, they are completely screwed to do /anything/ to him /or/ his business.
At most we're going to see a jump in him getting sued - it'll all be total bullshit that they won't win, but they'll try to attack his character and his reputation just like they did during the elections (and you see how successful that was for them.) In fact, all they did is throw the MSM under the bus lol