Sir Tony Blair has entered Labour’s civil war - and his message is brutal: changing the leader means nothing if the party still has no real plan for Britain.

In a sweeping essay, the former Prime Minister delivers a scathing critique of Keir Starmer’s government and questions whether Labour has coherent answers on growth, tax, welfare, Brexit, net zero and Britain’s place in the world. Blair argues the solution is a return to the “radical centre” - but what does that actually mean in 2026?

In this episode of The Fourcast, Krishnan Guru-Murthy examines whether Labour’s crisis is really about leadership at all. Would replacing Starmer with Wes Streeting or Andy Burnham solve anything? Should Labour move closer to Donald Trump or back towards Europe? And if the party forces a leadership contest now, does it risk opening the door to Nigel Farage and Reform UK?

Joining Krishnan are former Tony Blair speechwriter Phil Collins and Labour MP Zubir Ahmed, a supporter of Wes Streeting who resigned from government earlier this month, and Stewart Wood who was an adviser to Gordon Brown when he was Prime Minister and Ed Miliband when he was Labour leader.