I was a little surprised that Trump didn't. That seems like an easy beat-the-establishment policy win, or more likely, he'd put the media in the position of having to defend drug laws.
He was a 70 year old teetotaler and probably bought into the demon weed paranoia. Ironically so is Biden but dems seem much more willing to move on this based in the states so far
Drug legalization, Snowden/Assange pardon, de-classifying stuff, congressional term limits...
For Trump, being anti-establishment was always about catchy slogans "drain the swamp" and irrelevant "own the media" stunts like skipping the White House Correspondents' dinner.