I f you are Sir Keir Starmer, the results of the local and devolved elections make for grim reading . Thursday’s ballot gave almost two-thirds of Britain’s electorate the chance to vote. Fragmentation is no longer the future of British politics. In many places it is its present. After a quarter-century in which Labour and the Conservatives dominated electoral life, both parties suffered heavy losses in their traditional strongholds. Politics since the turn of the century has been upended: Reform UK seized the Tory bastion of Essex , home territory for Kemi Badenoch; the Greens wrested mayoral power in London’s Hackney and Lewisham from Labour; and Plaid Cymru routed Labour in Wales’ Senedd. This looked like more than the familiar midterm backlash, whatever the party in power. Clearly Sir Keir was on the ballot paper – and was roundly rejected by the voters.

The question is whether the prime minister is listening to the electorate – or hearing what suits him.…