Will a US senator die before October 1st?
The event deadline has passed. This market is awaiting formal resolution, so the price shown is the last traded level, not a live forecast.
- Last probability before deadline
- 2.2%
- Event deadline
- September 30, 2026 at 7:59 PM ET
- Venue status
- closed
ProbCast Reliability Summary
Will a US senator die before October 1st? The last traded Manifold probability before the deadline was 2.2%. The event deadline has passed. This market is awaiting formal resolution, so the price shown is the last traded level, not a live forecast.
- Market data as of
- September 30, 2026 at 8:05 PM ET
- ProbCast assessment generated
- September 30, 2026 at 9:11 PM ET
- Source
- Manifold
- Event deadline
- September 30, 2026 at 7:59 PM ET
- Market status
- Awaiting resolution
- Data updated
- 1h ago
What this market actually measures
Resolution criteria This market will resolve to YES if any currently serving United States Senator dies between the creation of this market and October 1, 2026, at 11:59 PM Eastern Time. Otherwise, this market will resolve to NO.
This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.
View full official resolution rules
Resolution criteria This market will resolve to YES if any currently serving United States Senator dies between the creation of this market and October 1, 2026, at 11:59 PM Eastern Time. Otherwise, this market will resolve to NO. Currently serving U.S. Senator: An individual who is an active, sworn member of the United States Senate at the time of their death. Former senators, senators-elect who have not yet been sworn in, and members of the House of Representatives do not qualify. Timing of death: The death must be officially confirmed to have occurred before October 1, 2026, at 11:59 PM ET. If a death occurs prior to this deadline but is only publicly announced or confirmed after October 1, the market will still resolve to YES. Verification: Resolution will be determined by official U.S. Senate vacancy announcements (via senate.gov) or consensus reporting from major reputable news organizations (e.g., AP News, Reuters). Background The U.S. Senate has a historically high average age, with a median age of 64 at the start of the 119th Congress. Several sitting members are octogenarians or nonagenarians, including Chuck Grassley (92), Bernie Sanders (84), and Mitch McConnell (83). Most recently, Senator Lindsey Graham (R-SC) passed away in office on July 11, 2026, at the age of 71. His passing marked the sixth death of a sitting member of the 119th Congress. This market tracks whether another active U.S. Senator will pass away before October 1, 2026. This description was generated by AI. Review and verify everything here yourself. You can edit, replace, or delete any part of this description, including the resolution criteria. You do not need to trust the AI output.
Market data
24h volume
Ṁ2.2K
Liquidity
Ṁ1K
Total volume
Ṁ8.1K
- Category
- AI / Tech
- Venue
- Manifold
- Open interest
- —
- Current probability
- 2.2%
- Resolves
- Sep 30, 2026