Keir Starmer came to Prime Minister’s Questions (PMQs) with a spring in his step. He announced that he owned ‘a rare unsigned copy’ of Liz Truss’s memoirs. ‘The only unsigned copy,’ he added with a chortle. Then he asked Rishi Sunak to justify the calamities of Truss’s premiership.

‘He should spend less time reading that book,’ said Rishi, ‘and a bit more time reading the deputy leader’s tax advice.’