What will Labour’s flagship promise be going into the next election? There’s a policy vacancy, now that the party plans to ditch its pledge to spend £28 billion a year on green investment.

This is not your average U-turn. This has been Labour’s big offering for more than two years. Yet today, Keir Starmer will ditch the headline figure for good – though his party still plans to usher in other parts of their proposed ‘Green Prosperity Plan’.