Conservative Party leadership contest initiated by October 1

Market overview

The Conservative Party will formally initiate a leadership election process by October 1, 2025, triggered by sustained polling deficits and internal party pressure following Labour's local election gains. The contest will be announced even if Starmer remains Prime Minister.

leadership prediction market

Implied probability (Yes)

70%

More leadership markets

• Starmer survives leadership challenge, cabinet reshuffle by September 2027 — 55% Yes
• Labour MPs to trigger leadership challenge within 30 days — 60% Yes
• Labour Party replaces Starmer with Angela Rayner by 2027 — 45% Yes
• Prince Harry meets King Charles III during UK visit — 45% Yes
• Andy Burnham will win a parliamentary seat by 2028 — 60% Yes
• Labour Party removes Starmer as leader by October 2028 — 70% Yes
• Keir Starmer will survive Streeting's challenge by 2028-10-31 — 75% Yes
• Wes Streeting will announce a leadership bid against Keir Starmer by July 2027 — 70% Yes

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