Will Republicans hold more than 50 Senate seats after the 2026 midterm elections? [ resolves — ]
polymarket: [A] multiple sources, tie-break·objective outcome methodology ›
distribution · by outcome · marks: daily snapshot
polymarket 11 markets
| market | resolves | P(YES) | vol (24h) | vol (cum) | RCG | venue id | ||
|---|---|---|---|---|---|---|---|---|
| 47 or fewer | — | 24.0% | $208 | $168K | A | 0x46c862…27a8 | ||
| Exactly 48 | — | 16.0% | $377 | $40K | A | 0xb2ce24…1253 | ||
| Exactly 49 | — | 13.0% | $203 | $51K | A | 0x2fb2b4…ed56 | ||
| Exactly 50 | — | 14.0% | $622 | $116K | A | 0xa81e63…88fb | ||
| Exactly 51 | — | 14.0% | $437 | $221K | A | 0xf9b68b…456c | ||
| Exactly 52 | — | 12.9% | $296 | $586K | A | 0x4b6d35…0486 | ||
| Exactly 53 | — | 6.1% | — | $69K | A | 0x812d9e…c1c2 | ||
| Exactly 54 | — | 1.7% | — | $763K | A | 0x38fa30…0480 | ||
| Exactly 55 | — | 1.7% | $349 | $430K | A | 0x77051d…fb0c | ||
| Exactly 56 | — | 1.3% | $445 | $183K | A | 0xe831d8…63ad | ||
| 57 or more | — | 1.4% | — | $112K | A | 0x5d7634…79fc |
resolution architecture
| venue | proposer | source | citation | arbitration | class | analyst notes |
|---|---|---|---|---|---|---|
| polymarket | Whitelisted Proposers | not provided | not provided | Optimistic Oracle (UMA) | Other | — |
verbatim rules
polymarket
The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democratic or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
platform source field
polymarket.resolutionSource → ∅ none returned sources (4) · quorum — multiple sources must agree
Associated Press from rules text Fox News from rules text NBC from rules text official certification from rules text
recent wire items
- Exact 53-seat GOP Senate sweep trades at long-shot odds 6% · $197K 24h
- 6% price marks a near-dismissal, markets see exact 53-seat outcome as fringe, not baseline.
- Polymarket logged $197K in 24h, 55% of all-time volume, majority of lifetime activity in one session.
- Surge likely reflects traders locking in positions as 2026 midterm seat counts sharpen into focus.
- Resolves post-2026 midterm certification; exact seat count makes this a precision, not directional, bet.
- Traders pile into exact 53-seat GOP Senate bet at long-shot odds 6% · $196K 24h
- Polymarket prices a precise 53-seat Republican Senate outcome at just 6%, reflecting narrow path probability.
- 24h volume of $196K equals 55% of all-time handle, signaling outsized fresh commitment to this contract.
- Attention likely driven by tightening Senate race projections and seat-count modeling as midterm results loom.
- Contract resolves on certified 2026 midterm seat totals; exact count bets carry higher variance than binary control markets.
- Exactly 48 GOP Senate seats after midterms stays unlikely 18% · $25K 24h
- Polymarket prices an exact 48-seat Republican outcome at only 18%, a precise count is inherently low-probability.
- $25K in 24h volume hits exactly 25% of all-time handle, the first major liquidity milestone for this contract.
- Attention at this threshold suggests traders are stress-testing Senate map scenarios ahead of November results.
- Resolves after all 2026 midterm Senate races are certified and seat totals confirmed.
- GOP holding exactly 53 Senate seats stays a long shot at 5% 5% · $52K 24h
- Polymarket prices Republicans landing on exactly 53 Senate seats at just 5%, a narrow-band outcome.
- 36% of all-time volume arrived in 24 hours, showing fresh attention on seat-count precision bets.
- Activity likely reflects traders mapping exact seat distributions as 2026 midterm race contours sharpen.
- Resolves after final 2026 midterm Senate results are certified.
programmatic access · four surfaces, same payload
One canonical record at every surface — embedded JSON-LD, REST, MCP, and /llms.txt.
| HTML | browsers, AI grounded search, crawlers (embedded JSON-LD @type: Dataset) | https://clearmarket.fyi/events/republican-senate-seats-after-the-2026-midterm-elections-927/ |
| JSON | REST API for developers | https://api.clearmarket.fyi/v1/events/republican-senate-seats-after-the-2026-midterm-elections-927 |
| MCP | agentic AI tool call (Claude Desktop, Cursor, Continue) | clearmarket.get_event("republican-senate-seats-after-the-2026-midterm-elections-927") |
| AGENT | AI crawler discovery index | /llms.txt |
Snapshot 2026-08-04. Venue data via Kalshi + Polymarket APIs. Editorial fields (tags, editorial_notes) are ClearMarket-drafted with AI assistance under editorial review. Derived fields (venues_covered, resolution_clarity_grade, rcg_score) computed at serve time. Full per-field map in the JSON record under field_provenance.
raw JSON record · same payload returned by REST endpoint {
"event_id": "CM-EVT-93ZW3RYZF7",
"slug": "republican-senate-seats-after-the-2026-midterm-elections-927",
"question": "Will Republicans hold more than 50 Senate seats after the 2026 midterm elections?",
"category": "politics",
"tags": [
"elections",
"politics",
"congress",
"senate-control",
"2026-midterms",
"gop-seats"
],
"venues_covered": [
"polymarket"
],
"market_count": 11,
"cumulative_volume_usd": 2741403,
"resolution_clarity_grade": "A",
"rcg_score": 85,
"rcg_caps": [],
"resolution_source": null,
"resolution_source_url": null,
"source_status": "platform_named",
"source_of_record": "Associated Press, Fox News, and NBC",
"resolution_source_list": [
{
"name": "Associated Press",
"url": null,
"provenance": "clearmarket_editorial"
},
{
"name": "Fox News",
"url": null,
"provenance": "clearmarket_editorial"
},
{
"name": "NBC",
"url": null,
"provenance": "clearmarket_editorial"
},
{
"name": "official certification",
"url": null,
"provenance": "clearmarket_editorial"
}
],
"arbitration_model": "uma_oracle",
"proposer_model": "managed_whitelist",
"field_provenance": {
"question": {
"source": "clearmarket_editorial"
},
"tags": {
"source": "clearmarket_editorial",
"ai_drafted": true
},
"resolution_clarity_grade": {
"source": "derived",
"method": "rcg_v2_7factor"
},
"venues_covered": {
"source": "derived"
}
}
}