Did you hear about the hybrid American–Nazi Germany flag on display in a U.S. government office? You would have seen it in the September 25 episode of Peacemaker, the satirical HBO superhero drama from James Gunn. Or you would have read about it this month courtesy of Politico, which obtained a screenshot of a virtual meeting in which a U.S. flag “with altered red and white lines in the shape of a swastika“ could be seen in the office of an Ohio Republican representative. In the same week, Politico exposed a Telegram group chat in which Young Republican leaders praised...