From the country that gave the world Hollywood movies, Broadway musicals, and TV soaps, sitcoms and talk shows such as Dallas, Friends and Oprah comes more sensational mass entertainment: real-time political farce. The Donald J Trump Show, a tragicomedy-cum-courtroom drama, opened in Manhattan last week. This one will run and run. Trump plays himself: sulky, entitled, vindictive. Other cast members include Stormy Daniels, his leading lady, a former porn star who teasingly refers to her breasts as Thunder and Lightning; an ex-Playboy model; a doorman in the know; a publisher rejoicing in the name of Pecker; and a shady, turncoat...