Keir Starmer, leader of the Labour Party, tried to clarify his position on the Israel-Hamas conflict in Chatham House in London earlier this week. Photograph: Chris Ratcliffe/Bloomberg Labour leader Keir Starmer’s grip on his party appeared absolute just last month. After shrugging off a protester who had doused him in glitter onstage during his party conference speech, he shimmered like a disco ball as he stoutly backed Israel’s right to defend itself after Hamas’s October 7th attack. Starmer received a standing ovation from most of the delegates in the hall for his comments. That scene would have been inconceivable during...