Sir Keir Starmer unveiled his £298bn Defence Investment Plan as one of his last major acts, but the announcement immediately turned toxic. Rachel Reeves admitted only £10.3bn of the promised £15bn has been costed, leaving the next prime minister—almost certainly Andy Burnham—to find £4.7bn in his first budget. At PMQs, Starmer insisted the £22bn fiscal headroom could cover the gap. Kemi Badenoch called the plan weak. Meanwhile, ministers...