The expected resignation date for Prime Minister Keir Starmer has been pushed back by 1 day, from 25 August 2026 to 26 August 2026, according to the latest Polymarket predictions.
The shift in the implied exit date comes as the probability of Starmer resigning by the end of August 2026 now stands at ~86%, down slightly from previous forecasts. Traders on the platform have adjusted their bets to reflect the new timeline.