CM ClearMarket
SYSTEM: LIVE · PRICES: HOURLY REFRESH · COVERAGE: ~3,860 EVENTS / ~39,200 MARKETS · KALSHI + POLYMARKET

Republicans holding more governorships after midterms stays favored

Kalshi 71%
record: CMSIG2026092306 | category: momentum-repricing | target: CM-EVT-4DFCBXLZN6 | published: 2026-09-23
4-bullet brief | narrative
  • Kalshi prices 71% on Republicans holding more governorships than Democrats after the 2026 midterms, despite Democratic polling momentum.
  • The PBS poll showing Democrats with a significant generic congressional lead is not fully reflected in the governorship market, which still favors GOP by a wide margin.
  • Governorship and House races are structurally different contests; the Democratic generic-ballot lead may not translate to statewide executive races.
  • A companion Kalshi contract on Republicans controlling at least one chamber after midterms (CM-EVT-T5VXKJT451) prices at 65%, suggesting markets see split-control scenarios as plausible.
atomic briefs
[01] news_event
significance
surfaced in the daily Exa news-cycle scan; mechanically matched to an active kalshi market
story
A new PBS poll shows Democratic congressional candidates holding a significant lead over Republicans, with independents breaking sharply against Trump.exa_search → PBS · as_of 2026-09-24T07:47:37+00:00
[mediated]
publisher
PBS
published_at
2026-09-23T08:46:27.430Z
[02] pm_response
interp
Kalshi binary at 71%; the market is not fully fading the Democratic polling surge, but retains a clear Republican governorship edge in current pricing.llm_judge_cm_signal_v1
[editorial]
evaluation

News-cycle wires publish on coverage, not editorial selection — the day’s top stories matched to the prediction markets pricing them, so nothing is cherry-picked.

judge_engine
none — deterministic news-cycle scan
judge_verdict
auto_published
judge_confidence
n/a — no judge gate (deterministic publishing)
prompt_template
news_cycle_v1 github · auditable
match_method
entity_slug_match (mechanical)
citation graph

Every wire traces back to the ClearMarket event it is built on, and out to each venue’s own market page — so any figure here can be verified at its source.

internal
programmatic access · four surfaces, same payload

AI grounded search reads embedded JSON-LD in HTML. Developers query REST. Agentic AI clients (Claude Desktop, Cursor) call MCP tools. AI crawlers index via /llms.txt. Same canonical record at every surface.

HTMLbrowsers, AI grounded search, crawlers (contains embedded JSON-LD @type: Dataset)https://clearmarket.fyi/signals/gop-holds-governor-edge-after-midterms-kalshi-71-2026-09-23/
JSONREST API for developershttps://clearmarket.fyi/signals/gop-holds-governor-edge-after-midterms-kalshi-71-2026-09-23.json
MCPagentic AI tool call (Claude Desktop, Cursor, Continue)clearmarket.get_signal("gop-holds-governor-edge-after-midterms-kalshi-71-2026-09-23")
AGENTAI crawler discovery index/llms.txt

PM data: platform APIs (hourly refresh). News context: retrieved with source citations. Editorial judgment: LLM judge with prompt template versioned per wire type. Per-claim provenance inline above; full per-field provenance map at the JSON endpoint under field_provenance.

raw JSON record · same payload returned by REST endpoint
{
  "$schema": "https://clearmarket.fyi/schema/signal/v1.json",
  "provenance_version": "0.2.0",
  "record_id": "CMSIG2026092306",
  "published_at": "2026-09-23T08:46:27.430Z",
  "detection": "news_cycle",
  "category_tag": "MOMENTUM_REPRICING",
  "secondary_tags": [],
  "pre_news_classification": "concurrent",
  "target_event_id": "CM-EVT-4DFCBXLZN6",
  "target_event_slug": "kxgovwins-27jan01",
  "event_question": "Will Republicans hold more governorships than Democrats after the midterms?",
  "bullets": [
    "Kalshi prices 71% on Republicans holding more governorships than Democrats after the 2026 midterms, despite Democratic polling momentum.",
    "The PBS poll showing Democrats with a significant generic congressional lead is not fully reflected in the governorship market, which still favors GOP by a wide margin.",
    "Governorship and House races are structurally different contests; the Democratic generic-ballot lead may not translate to statewide executive races.",
    "A companion Kalshi contract on Republicans controlling at least one chamber after midterms (CM-EVT-T5VXKJT451) prices at 65%, suggesting markets see split-control scenarios as plausible."
  ],
  "atomic_claims": [
    {
      "type": "news_event",
      "field_provenance": {
        "story": {
          "tier": "mediated",
          "method": "exa_search",
          "source": "PBS",
          "source_url": "https://www.pbs.org/newshour/politics/democrats-lead-in-new-poll-as-trump-looms-over-midterms",
          "retrieved_at": "2026-09-24T07:47:37+00:00"
        }
      },
      "significance": {
        "threshold": 5,
        "threshold_unit": "rank",
        "passed": true,
        "reason": "surfaced in the daily Exa news-cycle scan; mechanically matched to an active kalshi market"
      },
      "story": "A new PBS poll shows Democratic congressional candidates holding a significant lead over Republicans, with independents breaking sharply against Trump.",
      "publisher": "PBS",
      "published_at": "2026-09-23T08:46:27.430Z",
      "source_url": "https://www.pbs.org/newshour/politics/democrats-lead-in-new-poll-as-trump-looms-over-midterms"
    },
    {
      "type": "pm_response",
      "field_provenance": {
        "notes": {
          "tier": "editorial",
          "method": "llm_judge_cm_signal_v1"
        }
      },
      "notes": "Kalshi binary at 71%; the market is not fully fading the Democratic polling surge, but retains a clear Republican governorship edge in current pricing."
    }
  ],
  "evaluation": {
    "judge_engine": "none — deterministic news-cycle scan",
    "judge_verdict": "auto_published",
    "judge_confidence": null,
    "prompt_template": "news_cycle_v1"
  },
  "citations": {
    "internal": {
      "cm_event": "/events/kxgovwins-27jan01/",
      "related": []
    },
    "external": {
      "venue_a": "https://kalshi.com/markets/KXGOVWINS-27JAN01-R-50",
      "venue_b": null,
      "benchmark": null
    }
  },
  "sources": [
    {
      "label": "PBS: Democrats hold midterm lead with independents breaking sharply against",
      "url": "https://www.pbs.org/newshour/politics/democrats-lead-in-new-poll-as-trump-looms-over-midterms",
      "published_at": "2026-09-23T08:46:27.430Z",
      "retrieved_at": "2026-09-24T07:47:37+00:00"
    }
  ],
  "field_provenance": {
    "pm_data": "kalshi_api",
    "news_context": "exa_search",
    "editorial_judgment": "cm_signal_llm_judge"
  }
}
PROVENANCE PROTOCOL v0.2 · [direct] venue api · [mediated] grounded web fetch + source url · [derived] computed from listed inputs · [editorial] versioned llm judgment · full spec /schema/provenance/v1
record CMSIG2026092306 published 2026-09-23T08:46:27.430Z signature sha256-773e94a595d… ← underlying event all signals →