It’s impossible to read Volker Ulrich’s remarkable biography, “Hitler, Ascent: 1889-1939,” without being struck by the parallels between Adolph Hitler and Donald Trump. 1.They were both charismatic political leaders. Watching grainy newsreel footage of Hitler speaking, it’s difficult to imagine what a hypnotic spell he cast on his pre-war German audiences. Just as it’s difficult to understand the impact of …