All of Trump's behavior as President had echoes in what came before. He is capable of kindness but relies on casual cruelty as it suits his purposes. Pugnacious. Insecure. Lonely. Vindictive. Menacing. Smarter than his critics contend and colder and more calculating than his allies believe. A man who embedded himself in popular culture, galvanizing support for a run for high office that he began preliminary spadework for 30 years ago, to ultimately...