{
  "_notice": {
    "type": "free_key_offer",
    "message": "Free and anonymous access is staying. If this endpoint is in your pipeline, a free key adds advance notice before any schema change or deprecation. POST /v1/keys {\"email\": \"you@firm.com\"} — nothing else required. Something broken or missing? hello@clearmarket.fyi reaches a human.",
    "docs": "https://clearmarket.fyi/for-data/",
    "policy": "This field is additive and its shape will not change."
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  "event_id": "CM-EVT-R8V0583H75",
  "slug": "senateia-26",
  "question": "Iowa Senate winner?",
  "category": "politics",
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    "us-senate",
    "iowa-politics",
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    "republican-democrat",
    "electoral-prediction"
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  "catalyst_types": [],
  "catalyst_dates": [],
  "editorial_notes": "Both markets track the 2027 Iowa U.S. Senate race outcome. Kalshi lists Republican candidate Ashley Hinson and Democratic candidate Josh Turek as separate binary contracts. Together they price the full two-way outcome via Kalshi staff determination against official U.S. election results. The implied probabilities across both contracts should sum near 100, offering a direct arbitrage check.",
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  "primary_market_id": "CM-MKT-KQ0WXJLM96",
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    "implied_probability": 0.57
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  "created_at": "2026-07-23T21:11:14.426158+00:00",
  "updated_at": "2026-07-23T21:11:14.426158+00:00",
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      "market_id": "CM-MKT-KQ0WXJLM96",
      "event_id": "CM-EVT-R8V0583H75",
      "platform": "kalshi",
      "platform_market_id": "SENATEIA-26-R",
      "question": "Will Republicans win the Senate race in Iowa?",
      "description": "Ashley Hinson",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "Ashley Hinson: The referenced candidate's election outcome resolves according to official results published by the United States Congress, verified by Kalshi staff, by January 4, 2027.",
      "close_at": "2027-11-03T15:00:00Z",
      "resolve_at": "2027-01-04T15:00:00Z",
      "status": "open",
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        "rules_raw": "If a representative of the Republican party is sworn in as a Senator of Iowa for the term beginning in 2027, then the market resolves to Yes.",
        "arbitration_model": "kalshi_staff",
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      "event_id": "CM-EVT-R8V0583H75",
      "platform": "kalshi",
      "platform_market_id": "SENATEIA-26-D",
      "question": "Will Democratics win the Senate race in Iowa?",
      "description": "Josh Turek",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "Josh Turek: The referenced candidate's election outcome resolves according to official results published by the United States Congress, verified by Kalshi staff, by January 4, 2027.",
      "close_at": "2027-11-03T15:00:00Z",
      "resolve_at": "2027-01-04T15:00:00Z",
      "status": "open",
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        "arbitration_model": "kalshi_staff",
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        "source": "United States Congress",
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  "_provenance": {
    "source": "clearmarket.fyi",
    "ref": "CM-EVT-R8V0583H75",
    "terms": "Attribution required. clearmarket.fyi"
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