Boris Johnson UK Brexit Tories
(Image: AAP/Dan Himbrechts)

It's a big week in the politics of the Anglosphere when one ancient party tears itself apart, a president sacks the foreign policy supremo who was running him, and the prime minister of a third says he'd be happy to give a urine sample. Is there some common process underlying this, other than Pythonesque absurdity? Or are these fundamentally different processes, as separate polities become more distinct, under the pressure of populism?

The obvious temptation is to identify one common theme, which is the structural weakness and collapse of the mainstream right (as part of a wider collapse of mainstream politics). In the UK, Boris Johnson's crisis strategy appears to have been more deliberate than his detractors would claim, but less deliberate than his rapidly thinning band of champions would admit.