Tucker Carlson’s nationalist-populist credentials are about as solid as they come. But he has broken with President Donald Trump over the Iran war, which he says is in Israel’s interest, not America’s. Does this portend a MAGA crackup? Read the story of our interview with Mr Carlson, and watch the full video on Insider at 6pm London time.

We also look more broadly at the war’s effects on politics. Mr Trump has long seemed to be able to warp reality—but he cannot magic down petrol prices, and that is affecting his ability to conjure up enthusiasm. While Republicans support his war, about half do so only “somewhat”. If the war drags on, that would have big implications for the midterms—and his remaining political future.