In response to a series of adroit questions from Dean Russell about the structural and institutional lessons that might be derived from his experience, Cummings could only return to Johnson’s personal flaws, ‘like a shopping trolley, smashing from one side of the aisle into the other’. It’s true that ‘don’t elect Boris Johnson’ is a useful first step for dealing with any problem, but it is a little galling to hear it coming from the man who masterminded Johnson’s rise.