There is a new film coming about a famous American, born 70-odd years ago, who was an insufferable child of privilege with a half-serious interest in public affairs, who created a ridiculous public persona around a phony populist shtick, and who made a lucrative career out of giving public figures childishly demeaning nicknames. It is truly a shame that Molly Ivins did not live long enough to see Donald Trump take her act to its logical conclusion.