I don’t think they ever forgot. Most of them gnashed their teeth over his popularity, positioned themselves to profit while holding their noses, mocked him when they thought no one could overhear it, and made their plans to take advantage of the base he built after he was gone. Only a few really went along for the ride, because it’s hard to fake liking or respecting a person like him in the long term. That’s partly why his administration was such a revolving door for staff and appointees (as well as source of leaks and tell-all books).
Those that recognized and supported him early on (and still do) are very much like him. They recognize what vile traits they have in common, and it’s just another reason why I’d like to see them follow him on the way out.