Boris Johnson’s announcement today, promising he will fix the £15 billion hole in health and social care, may well be the decision that determines his and his party’s fate at the next election — and, by implication, Keir Starmer’s reaction will also determine his destiny.

Probably the most important point is that after the 18 months we’ve had, most people would argue that putting the NHS and care for the elderly and vulnerable on a stable financial footing should be the Prime Minister’s number one priority.