Rishi Sunak performed a mea culpa when his shadow cabinet convened on Monday, taking full responsibility for the election loss. There were, he said, lots of lessons to be learned. He tried rallying his team, reminding them it was time to knuckle down and prepare for the King’s Speech. When those around the table began agreeing, with some saluting Sunak’s performance during the campaign, Kemi Badenoch decided she couldn’t take it any longer.