[Vance] was naive and green. He has overcome his initial beliefs from 2 years ago, and now understands exactly the clear benefits of Donald J. Trumps policy and agenda to make America great again.
You don't follow any of this stuff very closely, do you? He called Trump an "American Hitler", which I think is apt enough, back in 2016. He now claims to have seen Trumpty execute his presidency "brilliantly". That change may have had something to do with the views of his own mentor and benefactor Peter Thiel.
And by now it most certainly has to do with his interest in power and wealth.