Prime Minister Keir Starmer is facing an earlier resignation deadline, according to Polymarket, a political betting platform. The implied resignation date has shifted 3 days earlier, from 17 September 2026 to 14 September 2026.
The change suggests the market believes Starmer is more likely to resign or be ousted as PM before the original date. The ~86% implied probability of Starmer remaining PM on 17 September has now fallen to the same level for 14 September.