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…
The magat mentality is the same mentality from southern slaveowners. The secessionists were given free reign to join back into society without serious repercussions and their ideas lived on with them.