Keir Starmer's resignation as Prime Minister has been brought forward by 6 days, according to the latest Polymarket betting data. The implied exit date has shifted from 13 September 2026 to 7 September 2026, a ~86% chance of Starmer resigning by that date.
The £1k-pound Polymarket bet on Starmer's resignation date reflects the growing pressure on the Prime Minister, with the odds shortening on him stepping down in the coming weeks.