He who wields the knife in the Tory party never wins the crown. Rishi only had to look back to the Thatcher demise to see the game is up for him. Heseltine a far more capable politician, and unlike Rishi a self-made millionaire, had his heart set to become leader and Prime Minister. He dealt Thatcher a mortal blow, but because of this the party turned their back on him and picked possibly the worst post-war PM, John Major. The game was up for Johnson with the resignation of Sunak as it was up for Thatcher with the resignation of Heseltine. Neither achieved what their actions were planned to achieve. I don't think Sunak has played this at all well.