I recently watched “A Face in the Crowd” for the umpteenth time. I had a better reason than procrastination to rewatch Elia Kazan’s brilliant 1957 film exploring populism in the television age. It was homework. I was asked to discuss it with Turner Classic Movies host Ben Mankiewicz at the just-concluded TCM Film Festival in Los Angeles. As a pundit and an author, I do a lot of public speaking. But I don’t really do a lot of cool public speaking, so this was a treat. With that not-very-humble brag out of the way, I had a depressing realization watching it this time. “A Face in the Crowd” tells the story of a charming drifter with a dark side named Larry “Lonesome” Rhodes, played brilliantly by Andy Griffith. A singer with the gift of the gab, Rhodes takes off on radio but quickly segues to the brand-new medium of television. He becomes a sensation — and political kingmaker — by forming a deep connection with the masses, particularly among the rural and working classes.…