"Research indicates that a bed rock 20-25% of the adults in North America is highly vulnerable to a demagogue who would incite hatred of various minorities to gain power. These people are constantly waiting for a tough “law and order,” “man on horseback” who will supposedly solve all our problems through the ruthless application of force. When such a person gains prominence, you can expect the authoritarian followers to mate devotedly with the authoritarian leader, because each gives the other something they desperately want: the feeling of safety for the followers, and the tremendous power of the modern state for the leader. I would not say that all of the people trying to surge Donald Trump into the White House are authoritarian followers. But they almost certainly compose his hard core base. Where are the rest coming from? Various places, such as white males who fear their status in society is eroding and those who cannot abide a Hillary Clinton presidency. But authoritarianism rises in a population that feels threatened, and many Americans today are anxious about their family’s economic future, not to mention the throbbing fear of terrorist attacks. Many of them are clutching at straws. It’s been noted that if 25% of the American population is always ready to vote for a dictator, that’s half-way to a majority. If the “right” kind of crisis comes along, it could create enough newly panicked citizens to vote a tyrant into office who would overthrow the Constitution, the rule of law, you name it."
January 1, 1970
https://en.wikiquote.org/wiki/Bob_Altemeyer