Well, if you consider '80's science fiction to be prophetic (and I do) - a brief passage, about eight seconds in:
Human: How did someone like that get to be your leader anyway?
Alien: Charisma. Circumstances, promises. Not enough of us spoke out to question him until it was too late. It happens on your planet doesn't it?
Human: I guess it does.
Yes, it does. It's never happened in America, though...until now.
Hat tip to France's finest export, E-nough!