Three of his main planks had to do with out Health Care cost crisis. It called for action against the Health Care Insurance Companies and The Health Care Corporations.
Trump could have been a hero in using existing Anti-Trust laws to go after them and force costs down by as much as 80% and then having the money to reorganize government finances. Lower our Health Care costs from 20% of GDR to 5% like everyone else. Bust as soon as he was projected to win those planks disappeared from his campaign website and that was it.

So he could have did more?
Bust as soon as he was projected to win those planks disappeared from his campaign website and that was it.
All in due time, grasshopper. Any other issues ?
Guess you don’t remember that Dumbbackwardass Paul Ryan fighting Trump every step of the way for Trump’s first two years. But for him we could have gotten rid of Odumbocare.