A year into Trump’s second term, the emboldened president’s maximalist strategy—pushing every norm to its most elastic, and then a bit beyond, and from that new breaking point pushing yet again—conjures the boiling-frog theory, in which a frog placed in boiling water will immediately hop out, but a frog placed in cool water that is slowly heated will complacently boil to death. (And yes, I know that this amphibious metaphor for failing to notice incremental negative changes is apocryphal, but the lesson is still apt.)