Keir Starmer became UK Prime Minister in July 2024 following Labour's election victory. This market tracks whether he will depart from office through resignation, removal, or other means before April 30, 2026. At 10% YES odds, the market implies strong confidence that Starmer will remain Prime Minister through the deadline, reflecting the relative stability of the Labour government and his secure party leadership. Low odds suggest significant institutional barriers to early transitions in the Prime Minister role. Recent developments show robust party unity, though major unexpected scandals or parliamentary defeats could shift sentiment. The April 30 deadline provides a defined checkpoint during an active government term. The market's $378K trading volume and $78K liquidity indicate meaningful interest in UK political outcomes. Market closes June 30, 2026, allowing verification time after the April 30 trigger date.