The Supreme Court declared money to be “free speech” and therefore protected by the first amendment. Therefore, if you are a billionaire and wish to throw elections to a fascist of your choice, that is protected speech.

The case is referred to as Citizens United. It’s also the source of the phrase “corporations are people, my friend” as it affords first amendment protections to corporations which are not people. Except in the crooked eyes of the fascist Supreme Court majority.