@arossp One major difference - Trump got all the publicity for free, while Musk flushed 45 bln down the toilet and is selling Tesla shares to pay off creditors.
Trump was exploiting someone else's platform. Musk is torching his own.
That said, Trump was his own character, a populist imbecile blowhard writ larger than life. Elon is simply trying to emulate a Rick and Morty alt-right stan, and is at best middling at it.
@arossp Well said.
Be interesting to see real interviews of other recently minted billionaires, to see how many are this narcissistic & incoherent. I imagine the fraction is large.