A £2,283 bet has been placed on Polymarket that Prime Minister Keir Starmer will leave Downing Street by June 30. The market currently implies around an 85% chance that Starmer's resignation will be announced by that date.
The large trade was made by a user named 'Positive-Steam', who opened a position backing Starmer's exit. The June 30 market is a 'yes/no' contract, with a 'yes' token payout if Starmer resigns by that point.