Wes Streeting, the Health Secretary in the United Kingdom, is reportedly set to resign from his position due to growing frustration with Prime Minister Keir Starmer's leadership. Allies have indicated that Streeting could launch a formal leadership challenge as early as Thursday, despite uncertainty regarding his ability to secure the required backing from 81 MPs. Insiders at Downing Street have suggested that Streeting does not yet have the necessary support, especially after Starmer issued a 'put up or shut up' ultimatum to his cabinet. Sources close to Streeting mentioned that discussions are ongoing to gather the requisite numbers for a leadership contest. Additionally, Zubir Ahmed, a close ally of Streeting who recently resigned as a minister, has called for Starmer to step down, asserting that his authority has significantly diminished. The political landscape within the Labour Party appears increasingly contentious as the leadership challenge looms.