Wes Streeting has said he felt he was “hitting up against a brick wall” when he tried to raise concerns about Gaza in government, after private messages from Peter Mandelson were disclosed where he was accused of being “hysterical” about the issue. Among a huge release of documents relating to Mandelson’s appointment as ambassador to the US, WhatsApp messages showed Mandelson being highly critical of Streeting to Pat McFadden, another cabinet minister.

In the messages, Mandelson discussed Streeting’s lobbying of the government in July 2025, when he was health secretary, to act on Gaza. Mandelson said he had received “a wild long hysterical message from Wes about Israel.

I pushed back. I can forward but reflects pretty badly on his maturity in my view.” McFadden said several days later that Streeting had circulated videos and a note to cabinet on Gaza, understood to be a dossier from three doctors, including two surgeons at prominent London hospitals, all of whom described their experiences of working in Gaza under Israeli bombardment.

Mandelson described Streeting’s intervention as “pathetic” and added: “I think Wes is experiencing an early mid-life crisis.” In a statement to the Guardian, Streeting said he was “horrified by the war in Gaza”. He added: “In government, I did everything I could behind the scenes to get the government to act with the moral urgency the conflict demands.

That included sharing the eyewitness testimony of doctors on the ground in Gaza, whose accounts needed to be heard at the highest levels of government to ensure that what was happening in Gaza wasn’t a war without witnesses. “I wasn’t by any means the only cabinet minister pushing for action, but we often felt like we were hitting up against a brick wall.