The brilliant historian explains that: 1) Trump is not Hitler (of course he isn’t!), and 2) Trump is not new. As Ecclesiastes tells us, there is nothing new under the sun. In fact, I vaguely remember learning about Denis Kearney when I was in high school and university, and also William Jennings Bryan (the latter far better known today than the former).
At any rate, very important to not conflate fascism with populism.