That old line that politics is showbiz for ugly people is so good it should be true, but it isn't really. Politics has always been politics, and showbiz is something different. Not, however, in the unique case of Donald Trump. The current US president is best understood as a pomp-era megastar. Extraordinary, really, that Trump never even needed to get into cocaine. I think when he dies scientists will discover that his body naturally produced coke as a byproduct of digesting overcooked hamburgers.