Labour MP Catherine West has publicly criticized party leader Keir Starmer, threatening a leadership challenge unless a Cabinet member steps forward by Monday. This follows Labour's significant losses in the May 2026 local elections, where the party lost nearly 1,500 council seats in England and control of the Welsh Parliament. West is seeking support from 81 MPs to trigger a leadership contest, highlighting internal divisions within the party. Despite the turmoil, prediction markets show a declining probability of Starmer's resignation or removal by June 30, 2026, currently at 23.5%, down from 26% in the last 24 hours and 40% a week ago. The lack of a clear successor may be influencing market sentiment, as no viable alternative candidate has emerged.