Democrats winning all four core Senate races stays near 50%

{
  "$schema": "https://clearmarket.fyi/schema/signal/v1.json",
  "provenance_version": "0.2.0",
  "record_id": "CMSIG2026110303",
  "published_at": "2026-11-03T06:00:00.000Z",
  "detection": "news_cycle",
  "category_tag": "MOMENTUM_REPRICING",
  "secondary_tags": [],
  "pre_news_classification": "concurrent",
  "target_event_id": "CM-EVT-P54SDG6NP7",
  "target_event_slug": "will-democrats-win-all-core-four-senate-races",
  "event_question": "Will Democrats win all four core Senate races?",
  "bullets": [
    "Polymarket puts Democrats winning all four core Senate races at 69%, with trading volume up 7,768% day over day, signaling heavy Election Day activity.",
    "The surge in volume reflects real-time polling and early vote data flow; the 69% probability places Democrats as clear but not overwhelming favorites.",
    "Companion Polymarket contract on Senate control overall sits at 78% for Democrats, slightly higher than the all-four-races sweep, implying path-dependency risk.",
    "Resolution via Polymarket UMA oracle once all four race calls are certified; a split outcome in any single race resolves the contract No."
  ],
  "atomic_claims": [
    {
      "type": "news_event",
      "field_provenance": {
        "story": {
          "tier": "mediated",
          "method": "exa_search",
          "source": "Lauren Fox, Morgan Rimmer, Ethan Cohen, Emilie Plesset, Koko Nakajima",
          "source_url": "https://www.cnn.com/2026/11/03/politics/live-news/midterm-election-congress",
          "retrieved_at": "2026-11-03T07:48:22+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": "Republicans are scrambling to defend red-state Senate seats on Election Day as Democrats campaign on high costs and the Iran war.",
      "publisher": "Lauren Fox, Morgan Rimmer, Ethan Cohen, Emilie Plesset, Koko Nakajima",
      "published_at": "2026-11-03T06:00:00.000Z",
      "source_url": "https://www.cnn.com/2026/11/03/politics/live-news/midterm-election-congress"
    },
    {
      "type": "pm_response",
      "field_provenance": {
        "notes": {
          "tier": "editorial",
          "method": "llm_judge_cm_signal_v1"
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      },
      "notes": "Polymarket volume on this contract rose 78.7x day over day, the largest single-day volume surge in this wire batch."
    }
  ],
  "evaluation": {
    "judge_engine": "none — deterministic news-cycle scan",
    "judge_verdict": "auto_published",
    "judge_confidence": null,
    "prompt_template": "news_cycle_v1"
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  "citations": {
    "internal": {
      "cm_event": "/events/will-democrats-win-all-core-four-senate-races/",
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    "external": {
      "venue_a": null,
      "venue_b": null,
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  "sources": [
    {
      "label": "Lauren Fox, Morgan Rimmer, Ethan Cohen, Emilie Plesset, Koko Nakajima: Republicans hope to stave off predictions of midterm losses amid high",
      "url": "https://www.cnn.com/2026/11/03/politics/live-news/midterm-election-congress",
      "published_at": "2026-11-03T06:00:00.000Z",
      "retrieved_at": "2026-11-03T07:48:22+00:00"
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