How panicked should we be about the rise of Donald Trump? A professor at Harvard, Danielle Allen, recently published a widely shared op-ed piece in the Washington Post likening his rise to that of Hitler... ...such Hitler hype has happened before, and been unwarranted. Steven Hayward, author of “The Age of Reagan,” recalls the rhetoric: Democratic Rep. William Clay of Missouri charged that Reagan was “trying to replace the Bill of Rights with fascist precepts lifted verbatim from Mein Kampf.”