The WhatsApp message doing the rounds in Westminster yesterday was succinct: ‘Rishi PM. Hunt Chx. Penny FS. It’s a done deal’. Except that the only thing that’s ‘done’ is the Conservatives as a credible party of government. If there is indeed a stitch-up, one that sees the installation of the beaten leadership candidates as prime minister, chancellor, and foreign secretary, then the Tories can kiss goodbye not only to the next few general elections but also to their very existence as the most successful governing party in the democratic world.