Blue wave odds build strongly ahead of election day

{
  "$schema": "https://clearmarket.fyi/schema/signal/v1.json",
  "provenance_version": "0.2.0",
  "record_id": "CMSIG2026110105",
  "published_at": "2026-11-01T00:00:00.000Z",
  "detection": "news_cycle",
  "category_tag": "MOMENTUM_REPRICING",
  "secondary_tags": [],
  "pre_news_classification": "concurrent",
  "target_event_id": "CM-EVT-4N4F192YB2",
  "target_event_slug": "blue-wave-in-2026",
  "event_question": "Will there be a blue wave in 2026?",
  "bullets": [
    "The Polymarket prediction market puts 89% odds on a blue wave in 2026; the Kalshi contract on the same event sits at 84%.",
    "The 5-point gap between venues on an identically framed question is notable; neither market shows hesitation, with both pricing a Democratic sweep as the strong base case.",
    "Cross-checking against the Republican Senate control contract at 73% on Polymarket creates a tension: 89% blue wave alongside 73% GOP Senate implies some probability mass where Democrats win the House but not the Senate.",
    "Resolution mechanics differ by venue: the Kalshi contract resolves via Bureau of Labor Statistics (likely a metadata error); Polymarket resolves via UMA oracle on official results."
  ],
  "atomic_claims": [
    {
      "type": "news_event",
      "field_provenance": {
        "story": {
          "tier": "mediated",
          "method": "exa_search",
          "source": "Tamara Keith",
          "source_url": "https://www.npr.org/2026/11/01/nx-s1-6023356/who-decides-the-future-of-america",
          "retrieved_at": "2026-11-01T14:42:33+00:00"
        }
      },
      "significance": {
        "threshold": 5,
        "threshold_unit": "rank",
        "passed": true,
        "reason": "surfaced in the daily Exa news-cycle scan; mechanically matched to an active polymarket market"
      },
      "story": "NPR's Sunday Story outlines what is at stake in Tuesday's midterms, with Democrats positioned to potentially retake control of Congress.",
      "publisher": "Tamara Keith",
      "published_at": "2026-11-01T00:00:00.000Z",
      "source_url": "https://www.npr.org/2026/11/01/nx-s1-6023356/who-decides-the-future-of-america"
    },
    {
      "type": "pm_response",
      "field_provenance": {
        "notes": {
          "tier": "editorial",
          "method": "llm_judge_cm_signal_v1"
        }
      },
      "notes": "The Polymarket and Kalshi blue-wave contracts both sit well above 80%, making this the strongest unambiguous directional signal in the midterm event set today."
    }
  ],
  "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/blue-wave-in-2026/",
      "related": []
    },
    "external": {
      "venue_a": null,
      "venue_b": null,
      "benchmark": null
    }
  },
  "sources": [
    {
      "label": "Tamara Keith: Everything voters need to know about the 2026 Midterm Election : The S",
      "url": "https://www.npr.org/2026/11/01/nx-s1-6023356/who-decides-the-future-of-america",
      "published_at": "2026-11-01T00:00:00.000Z",
      "retrieved_at": "2026-11-01T14:42:33+00:00"
    }
  ],
  "field_provenance": {
    "pm_data": "polymarket_api",
    "news_context": "exa_search",
    "editorial_judgment": "cm_signal_llm_judge"
  }
}