{
  "_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."
  },
  "event_id": "CM-EVT-YKHDL92349",
  "slug": "controls-2026",
  "question": "Which party will win the U.S. Senate?",
  "category": "politics",
  "event_type": "BINARY",
  "ladder_distribution": null,
  "tags": [
    "politics",
    "us-senate",
    "us-politics",
    "2026-election",
    "party-control",
    "electoral-outcome"
  ],
  "catalyst_types": [],
  "catalyst_dates": [],
  "editorial_notes": "These markets track which party controls the U.S. Senate following the 2026 midterm elections. The Library of Congress determines final chamber composition, with Kalshi staff determination confirming resolution by February 1, 2027. Both markets are binary and directional, pricing Democratic and Republican outcomes separately. Implied probabilities across the two contracts should sum near 100, offering a cross-check on embedded third-party or split-control risk.",
  "venues_covered": [
    "kalshi"
  ],
  "primary_market_id": "CM-MKT-0LGR9N25C2",
  "current_primary_mark": {
    "last_price": 0.56,
    "implied_probability": 0.56
  },
  "created_at": "2026-07-06T00:30:45.836226+00:00",
  "updated_at": "2026-07-06T00:30:45.836226+00:00",
  "markets": [
    {
      "market_id": "CM-MKT-TG59Z472J2",
      "event_id": "CM-EVT-YKHDL92349",
      "platform": "kalshi",
      "platform_market_id": "CONTROLS-2026-D",
      "question": "Will Democrats win the U.S. Senate in 2026?",
      "description": "Democratic Party",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "Democratic Party: The Library of Congress reports final 2026 U.S. Senate composition by February 1, 2027, with Kalshi staff determining which party holds the majority.",
      "close_at": "2027-02-01T15:00:00Z",
      "resolve_at": "2027-02-01T15:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the Democratic Party has won control of the U.S. Senate in 2026, then the market resolves to Yes.\n\nVictory will be determined by the party identification of the President pro tempore of the Senate on February 1, 2027.",
        "arbitration_model": "kalshi_staff",
        "proposer": "platform_staff",
        "source": "Library of Congress",
        "source_status": "platform_named",
        "source_citation": "https://www.congress.gov/",
        "sources": [
          {
            "name": "Library of Congress",
            "url": "https://www.congress.gov/",
            "provenance": "platform_api"
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        "source_of_record": "Library of Congress",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": "authoritative",
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
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      "rcg": {
        "grade": "A",
        "score": 90,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.45,
      "implied_probability": 0.45,
      "volume_24h_usd": 6726.303,
      "volume_total_usd": 1236036.582,
      "settlement_style": "occurrence",
      "direction": "reach",
      "threshold": null,
      "question_id": null,
      "also_on": null,
      "tags": [
        "2026",
        "democratic party senate",
        "democrats",
        "us-senate"
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      "eligibility_screens": [
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          "screen_version": "v1",
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          "bucket": null,
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      "event_id": "CM-EVT-YKHDL92349",
      "platform": "kalshi",
      "platform_market_id": "CONTROLS-2026-R",
      "question": "Will Republicans win the U.S. Senate in 2026?",
      "description": "Republican Party",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "Republican Party: The Library of Congress reports final 2026 U.S. Senate composition by February 1, 2027, with Kalshi staff determining which party holds the majority.",
      "close_at": "2027-02-01T15:00:00Z",
      "resolve_at": "2027-02-01T15:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If the Republican Party has won control of the U.S. Senate in 2026, then the market resolves to Yes.\n\nVictory will be determined by the party identification of the President pro tempore of the Senate on February 1, 2027.",
        "arbitration_model": "kalshi_staff",
        "proposer": "platform_staff",
        "source": "Library of Congress",
        "source_status": "platform_named",
        "source_citation": "https://www.congress.gov/",
        "sources": [
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        "grade": "A",
        "score": 90,
        "caps": [],
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      "implied_probability": 0.56,
      "volume_24h_usd": 10118.5672,
      "volume_total_usd": 1855511.5544000003,
      "settlement_style": "occurrence",
      "direction": "reach",
      "threshold": null,
      "question_id": null,
      "also_on": null,
      "tags": [
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        "republican party senate",
        "republicans",
        "us-senate"
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      "eligibility_screens": [
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          "regime": "ciro-26-0076",
          "screen_version": "v1",
          "status": "not_eligible",
          "reasons": [
            "category_not_permitted"
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          "screened_at": "2026-06-12"
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  "resolution_log": [],
  "_provenance": {
    "source": "clearmarket.fyi",
    "ref": "CM-EVT-YKHDL92349",
    "terms": "Attribution required. clearmarket.fyi"
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}