It just seems a weird one, given that from what I can see, he's very much in danger of losing his own seat. If that happens, he gets emptied as a very much bigger beast than he warrants, and those of us of a certain age will remember the hilarity and GIRFUYs of Portillo going. Is the thinking that they know they're whipped and ridding the Party of the most obvious helmets stands them in better stead for next time round by being able to say they've 'changed' (although no doubt Truss will still be on the back benches rictus grinning at whatever happens to be in her field of vision)? Or maybe he's pissed Sunak off and Rishi wants to stick a bit more humiliation on him before he buggers back off to California to lounge by a swimming pool full of his wife's money?