| Outcome | Probability | Yes Bid | Yes Ask | 24h Change | Volume | |
|---|---|---|---|---|---|---|
| Before 2026 | 1% | 0¢ | 100¢ | — | $57K | Resolved |
| Before 2027 | 30% | 24¢ | 30¢ | — | $8K | Trade → |
This market asks whether any sitting member of the U.S. Congress will publicly change party affiliation during 2026. Party switches are high-impact events because they can alter committee dynamics, majority margins, and the signaling around ideological alignment.
Party switching in Congress is uncommon but not unprecedented; switches have occurred for ideological reasons, electoral pressure, leadership disputes, or strategic positioning. The 2026 cycle includes primary contests, special elections, and any post-redistricting political realignments that can create incentives for members to reassess affiliation. Outcomes hinge on individual calculations by members as well as institutional incentives from both parties.
Market prices reflect traders’ aggregated expectations about whether a switch will occur and move as new information arrives; they are indicators of consensus, not guarantees. Use them alongside reporting on member statements, filings, and institutional changes to understand evolving odds.
Typically this means a public, formal change in party affiliation while serving in Congress—e.g., an announcement and updated official affiliation on the congressional record or filings. Adjudication follows the market’s official rules, so consult those for binding criteria.
Yes—references to Congress normally include both the House and Senate. Non‑voting delegates are members of the House delegation; whether they count depends on the event’s adjudication language, so check the market rules to confirm inclusion of delegates.
Unless otherwise specified in the event terms, "in 2026" means the calendar year (January 1 through December 31, 2026) or until the market’s stated closing time; verify the official event timeline for exact cutoffs.
Countability depends on when the change of affiliation occurs while the person is a sworn member. A change that occurs while they are not serving generally will not count; a formal affiliation change while serving as a member does. Check the market’s adjudication rules for precise rulings.
Historical switches provide context on typical drivers—ideological splits, electoral pressure, or leadership conflicts—but each case is unique. Use past cases to identify patterns and likely triggers, then track current member statements, filings, and local political conditions for real‑time signals.