Sure, there was the attempted assassination of Reagan and the fears for Obama as the first black President, but in those cases it was a lone nutter rather than a conspiracy.
How long can Trump crash the market before an angry billionaire decides to take him out? The remaining Koch brother is already pouring money into legal challenges against Trump…
Unlikely any bigger conspiracy or billionaire will try. They could wait 3.5 years and not have to bother with anything illegal.
MAGA candidates don’t seem to do well without Trump, so even if a republican wins it’s unlikely to be whatever this is.
If he is somehow allowed to take a dump on the constitution and get a 3rd term, maybe.