It’s hard to contemplate American public life in the 21st century and not arrive at the unhappy conclusion that we are led by idiots. The political class has lately produced an impressive string of debacles: the Afghanistan pullout, urban crime waves, easily foreseen inflation, mayhem at the southern border, a self-generated energy crisis, a pandemic response that wrought little good and vast ruin. Then there are the perennial national embarrassments: a mind-bogglingly expensive welfare state that doesn’t work, public schools that make kids dumber, universities that nurture destructive grievances and noxious ideologies, and a news media nobody trusts.