UK leadership contenders expected to launch bids to unseat prime minister after days of maneuvering
British Prime Minister Keir Starmer faces open rebellion as Wes Streeting prepares to announce a leadership bid. Angela Rayner, clearing tax issues, signals readiness to contest, urging Starmer to reflect. Disastrous election results fuel pressure, though Starmer vows to stay, warning of chaos. Potential rivals like Andy Burnham are also being discussed.