From 2015:

Perspective by Mike Godwin

First, let me get this Donald Trump issue out of the way: If you’re thoughtful about it and show some real awareness of history, go ahead and refer to Hitler or Nazis when you talk about Trump. Or any other politician.

https://www.washingtonpost.com/posteverything/wp/2015/12/14/sure-call-trump-a-nazi-just-make-sure-you-know-what-youre-talking-about/

He had another oped a year ago where he was basically like “yeah, they’re Nazis “