I suspect that, one way or another, Mr Bercow‘s turbulent tenure in the Commons chair is coming to an end.

Perhaps in months rather than weeks, but not before the big Brexit votes (and it‘s not impossible that somewhere along the way, he might have to make this kind of ruling again).

The basic question his would-be successors will have to answer is how much of the Bercow revolution in the way the Commons works should be scrapped – and how much should be retained?