The Prime Minister's expected resignation date has been pushed back by one day, from 23 August 2026 to 24 August 2026, according to the latest Polymarket data.
This shift in the implied resignation date comes as the political landscape continues to evolve around Keir Starmer's leadership of the Labour Party. Traders on the Polymarket platform now see a ~86% chance of Starmer stepping down as PM by the new date of 24 August 2026.