Is Penny Mordaunt the Stop Boris candidate?

Here’s a little mystery: whatever happened to that nice, sensible foursome whom all week we were led to believe were ready to seize the reins of power from Liz Truss: Rishi Sunak, Jeremy Hunt, Penny Mordaunt and Ben Wallace? If Truss resigned, we were told, the Tory party would behave in the same grown-up fashion that it did when it elected Michael Howard as leader unopposed in 2003.