I deleted a series of comments assuring me that Trump is at worst just another bad President and that comparisons to the Nazis are, in effect, silly. I disagree, but it isn't a productive debate: anyone who doesn't recognize the danger isn't going to (at least until it is too late). As for myself, I agree with David Frum (not something I would have expected a decade ago): if our democracy and indeed our civilization survives Trump, it won't be because the threat wasn't real, but because enough people recognized the danger and acted to meet it.