| Outcome | Probability | Yes Bid | Yes Ask | 24h Change | Volume | |
|---|---|---|---|---|---|---|
| Yes | 0% | 0¢ | 0¢ | — | $0 | Trade → |
This market asks whether any additional sitting members of the U.S. Congress will formally change their party affiliation at any point during calendar year 2026. Party switches can affect chamber control, committee assignments, and legislative strategy, so tracking them matters to investors and observers of congressional balance.
Party switching by members of Congress is uncommon but recurring across U.S. history, often tied to regional realignments, ideological shifts, or strategic responses to local political pressures. Recent decades have seen few switches compared with earlier eras, but heightened polarization, primary threats, and changing electoral maps can create incentives for rare defections.
Market odds here summarize traders' collective view about whether any additional serving member will change affiliation during 2026; they update as new information (announcements, scandals, retirements, election results) arrives. Interpret odds as a dynamic signal that incorporates real-time news and changing incentives rather than a fixed prediction.
Any formal, recorded change in a sitting member's official party affiliation while they are serving in 2026 counts: switching from one major party to the other, declaring independent status, or joining a third party are all included if the change is publicly recorded by the House or Senate.
No; for this event the switch must occur while the person is an active, sworn member during calendar year 2026 and must be reflected in the chamber's official affiliation records within that year.
Yes—if a person is sworn into Congress in 2026 and subsequently changes their official affiliation during 2026 while serving, that change counts for the event.
No; only changes that occur while the person is an active, serving member of either chamber during calendar year 2026 are eligible for this event.
'Anyone else' is intended to capture additional affiliation changes occurring in 2026 beyond those already completed earlier in the year; in practice, whether prior switches are excluded depends on the market's settlement rules, but the practical interpretation is any new, distinct change that occurs during 2026 while the member is serving.