Traders view the contest for the next leader to exit power before 2027 as closely balanced between UK Prime Minister Keir Starmer and Colombian President Gustavo Petro, whose respective 39.5% and 34.0% implied probabilities capture real-money consensus on near-term removal risks. Starmer’s position depends on parliamentary confidence votes and economic performance within a system that allows early elections before the 2029 deadline, while Petro navigates legislative gridlock and coalition pressures during a fixed presidential term ending in 2026. Lower odds for leaders such as Cuba’s Miguel Díaz-Canel or others underscore institutional barriers including extended mandates or limited opposition mechanisms that historically limit swift leadership changes. Scheduled parliamentary sessions, budget votes, or coalition negotiations in the coming months could alter these probabilities if they expose or ease governing vulnerabilities.