The latest Polymarket data indicates that the implied resignation date for Prime Minister Keir Starmer has shifted 2 days later, from 11 Sept 2026 to 13 Sept 2026. The market now sees around ~86% chance of Starmer resigning or being removed by that later date.
This comes as no surprise given the ongoing political turmoil and speculation around the PM's future. Starmer has faced growing pressure from within his own party, with a number of Labour MPs publicly calling for him to step down in recent weeks.