{
  "$schema": "https://clearmarket.fyi/schema/signal/v1.json",
  "record_id": "CMSIG2026101805",
  "record_slug": "gop-retains-at-least-one-chamber-kalshi-62-2026-10-18",
  "schema_version": "v0.2.0",
  "provenance_version": "0.2.0",
  "published_at": "2026-10-18T00:00:00.000Z",
  "semantic_title": "Republicans holding at least one chamber after midterms stays favored",
  "telemetry": "Kalshi 62%",
  "headline": "GOP retains at least one chamber: Kalshi 62%",
  "category_tag": "MOMENTUM_REPRICING",
  "secondary_tags": [],
  "detection_path": "news_cycle",
  "pre_news_classification": "concurrent",
  "status": {
    "state": "live",
    "as_of": "2026-10-21",
    "outcome": null,
    "outcome_basis": null,
    "final_price": null,
    "resolved_at": null
  },
  "target_event_id": "CM-EVT-T5VXKJT451",
  "target_event_slug": "kxbalancepowercombo-27feb",
  "event_question": "Will Republicans control at least one chamber of Congress after the 2026 midterm elections?",
  "linked_event_ids": [],
  "primary_market": {
    "platform": "kalshi",
    "platform_market_id": "KXBALANCEPOWERCOMBO-27FEB-DD",
    "question_raw": "Will House Control be Democratic AND Senate Control be Democratic for Feb 2027?",
    "current_price": 0.62,
    "volume_24h_usd": 26178.68,
    "arbitration_model": "kalshi_staff",
    "resolution_source": "Bureau of Labor Statistics",
    "resolves_at": "2027-02-01T15:00:00Z"
  },
  "related_markets": [],
  "bullets": [
    "Kalshi prices 62% odds that Republicans control at least one chamber of Congress after the 2026 midterms, resolving via Bureau of Labor Statistics official congressional records.",
    "Trump's record-low 33% approval rating in the Washington Post poll is a bearish signal for Republicans, yet the market still leans toward GOP retaining at least one chamber.",
    "A companion Kalshi contract (CM-EVT-FV8MR86S63) prices 90% odds that Democrats win the House, implying the market reconciles both by expecting a split outcome with Republicans holding the Senate.",
    "Resolves via Library of Congress official certification of congressional composition after the November 2026 election results are certified."
  ],
  "atomic_claims": [
    {
      "type": "news_event",
      "field_provenance": {
        "story": {
          "tier": "mediated",
          "method": "exa_search",
          "source": "Dan Balz",
          "source_url": "https://www.washingtonpost.com/politics/2026/10/18/trump-approval-hits-record-low-handing-democrats-clear-midterm-edge/",
          "retrieved_at": "2026-10-18T07:47:28+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 Washington Post poll puts President Trump's approval at 33%, with 66% disapproving, handing Democrats what the poll frames as a clear midterm edge.",
      "publisher": "Dan Balz",
      "published_at": "2026-10-18T00:00:00.000Z",
      "source_url": "https://www.washingtonpost.com/politics/2026/10/18/trump-approval-hits-record-low-handing-democrats-clear-midterm-edge/"
    },
    {
      "type": "pm_response",
      "field_provenance": {
        "notes": {
          "tier": "editorial",
          "method": "llm_judge_cm_signal_v1"
        }
      },
      "notes": "Kalshi covers both the 'at least one chamber' and House-specific contracts; the 62%-vs-90% split is internally consistent only under a scenario where the Senate stays Republican."
    }
  ],
  "sources": [
    {
      "label": "Dan Balz: Trump approval hits record low, handing Democrats a clear midterm edge",
      "url": "https://www.washingtonpost.com/politics/2026/10/18/trump-approval-hits-record-low-handing-democrats-clear-midterm-edge/",
      "published_at": "2026-10-18T00:00:00.000Z",
      "retrieved_at": "2026-10-18T07:47:28+00:00"
    }
  ],
  "field_provenance": {
    "pm_data": "kalshi_api",
    "news_context": "exa_search",
    "editorial_judgment": "cm_signal_llm_judge"
  },
  "canonical_urls": {
    "html": "https://clearmarket.fyi/signals/gop-retains-at-least-one-chamber-kalshi-62-2026-10-18/",
    "json": "https://clearmarket.fyi/signals/gop-retains-at-least-one-chamber-kalshi-62-2026-10-18.json"
  },
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "_provenance_registry": {
    "direct": "Unaltered extraction from primary venue/source API (e.g., polymarket_clob_api, kalshi_api, BLS, FRED). Highest trust tier.",
    "mediated": "Information fetched via grounded agentic retrieval (e.g., perplexity_grounded). MUST carry source_url to the underlying primary source.",
    "derived": "Algorithmic computation from listed inputs. Chain only as fresh as the oldest input timestamp (see as_of).",
    "editorial": "Interpretive classification produced by a versioned LLM prompt template (prompts auditable in github.com/JDSource/clearmarket/prompts)."
  },
  "_provenance_canonical": "https://clearmarket.fyi/schema/provenance/v1"
}