The Prime Minister's expected resignation date has been pushed back by 3 days, from 14 Aug 2026 to 17 Aug 2026, according to the latest Polymarket data. The shift in the implied resignation timeline suggests growing uncertainty around Keir Starmer's future as PM.
The change in the expected exit date comes as Starmer's political position faces increasing scrutiny. Markets now see a ~86% chance the Labour leader will have stepped down by the new 17 Aug 2026 date, up from the previous 14 Aug 2026 timeline.
Starmer has faced mounting pressure from within his own party, with a growing number of Labour MPs publicly calling for him to resign. The Prime Minister's office has not yet commented on the Polymarket update.