PM Starmer's resignation date pushed back by 6 days to 28 July 2026

· implied p50 shift

Briefing

The date by which Keir Starmer is expected to resign as Prime Minister has been pushed back by 6 days, according to the latest betting on Polymarket. The implied resignation date has shifted from 22 July 2026 to 28 July 2026, suggesting around ~86% probability Starmer will still be PM on that later date.

The change comes as Starmer faces growing pressure from Labour rebels, with the number of backbench MPs publicly demanding his resignation now standing at over 30. However, the PM has vowed to 'carry on' and lead the party into the next general election.