{
  "_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-NR6YTLKDN0",
  "slug": "kxnyctaxbillions-27jan01",
  "question": "Will Mamdani tax billionaires before 2027?",
  "category": "politics",
  "event_type": "BINARY",
  "ladder_distribution": null,
  "tags": [
    "politics",
    "mamdani-tax-policy",
    "billionaire-taxation",
    "us-politics",
    "2027",
    "wealth-tax"
  ],
  "catalyst_types": [],
  "catalyst_dates": [],
  "editorial_notes": "This market tracks whether a billionaire tax measure associated with Mamdani becomes law in New York City before January 1, 2027. Resolution relies on Kalshi staff determination, referencing New York City government websites for official enactment status. Only one platform structures this event, so no cross-platform contrast applies. The binary outcome depends on formal legislative passage, not proposal or advocacy milestones.",
  "venues_covered": [
    "kalshi"
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  "primary_market_id": "CM-MKT-ZLPG4CYDZ9",
  "current_primary_mark": {
    "last_price": 0.09,
    "implied_probability": 0.09
  },
  "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-ZLPG4CYDZ9",
      "event_id": "CM-EVT-NR6YTLKDN0",
      "platform": "kalshi",
      "platform_market_id": "KXNYCTAXBILLIONS-27JAN01",
      "question": "Will  become law in New York City before Jan 1, 2027?",
      "description": "Yes",
      "contract_type": "binary",
      "settlement_currency": "USD",
      "underlying_reference": "New York City government websites publish whether the bill became law before January 1, 2027.",
      "close_at": "2027-01-01T04:59:00Z",
      "resolve_at": "2027-01-08T15:00:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "If a law authorizing a new personal income tax bracket or surcharge on incomes over $1 billion for New York City residents has become law in New York City before Jan 1, 2027, then the market resolves to Yes.\n\nEnactment requires completion of all constitutional and legal requirements for the legislation to become binding law. For standard legislation requiring executive approval, this includes final passage by all required legislative bodies, executive signature OR becoming law despite executive inaction OR successful veto override, and satisfaction of any required waiting periods. For legislation not requiring executive approval, this includes final passage and completion of required waiting periods. For constitutional amendments, this includes passage with required supermajorities and completion of ratification processes. For executive orders, this includes official signature, publication in official government records, and legal effectiveness. Legislative passage without completed executive action, passage by only some required bodies, provisional passage, non-binding resolutions, and draft orders do not constitute enactment. Enactment occurs when all requirements are completed, regardless of pending judicial challenges.",
        "arbitration_model": "kalshi_staff",
        "proposer": "platform_staff",
        "source": "geography’s official government websites",
        "source_status": "platform_named",
        "source_citation": "https://kalshi.com/",
        "sources": [
          {
            "name": "geography’s official government websites",
            "url": "https://kalshi.com/",
            "provenance": "platform_api"
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          {
            "name": "ABC",
            "url": "https://abcnews.go.com/",
            "provenance": "platform_api"
          },
          {
            "name": "The Source Agencies are",
            "url": "https://kalshi.com/",
            "provenance": "platform_api"
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          {
            "name": "the Federal Register",
            "url": "https://www.federalregister.gov/",
            "provenance": "platform_api"
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          {
            "name": "The Information",
            "url": "https://www.theinformation.com",
            "provenance": "platform_api"
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          {
            "name": "MSNBC",
            "url": "https://www.msnbc.com/",
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          {
            "name": "The United States Congress",
            "url": "https://kalshi.com/",
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          {
            "name": "in hierarchical order: geography’s legislative bodies",
            "url": "https://kalshi.com/",
            "provenance": "platform_api"
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          {
            "name": "The White House",
            "url": "https://kalshi.com/",
            "provenance": "platform_api"
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          {
            "name": "CBS",
            "url": "https://www.cbsnews.com/",
            "provenance": "platform_api"
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          {
            "name": "the Associated Press",
            "url": "https://apnews.com/",
            "provenance": "platform_api"
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            "name": "The Washington Post",
            "url": "https://www.washingtonpost.com/",
            "provenance": "platform_api"
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            "name": "Axios",
            "url": "https://www.axios.com/",
            "provenance": "platform_api"
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          {
            "name": "CNN",
            "url": "https://www.cnn.com/",
            "provenance": "platform_api"
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            "name": "The Wall Street Journal",
            "url": "https://www.wsj.com/",
            "provenance": "platform_api"
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          {
            "name": "Fox News",
            "url": "https://www.foxnews.com",
            "provenance": "platform_api"
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          {
            "name": "The New York Times",
            "url": "https://www.nytimes.com/",
            "provenance": "platform_api"
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            "name": "NBC",
            "url": "https://www.nbcnews.com/",
            "provenance": "platform_api"
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          {
            "name": "Semafor",
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          {
            "name": "Politico",
            "url": "https://www.politico.com",
            "provenance": "platform_api"
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          {
            "name": "relevant governmental agency in geography",
            "url": "https://kalshi.com/",
            "provenance": "platform_api"
          },
          {
            "name": "Bloomberg News",
            "url": "https://www.bloomberg.com",
            "provenance": "platform_api"
          },
          {
            "name": "Reuters",
            "url": "https://www.reuters.com",
            "provenance": "platform_api"
          },
          {
            "name": "major newspapers in geography",
            "url": "https://kalshi.com/",
            "provenance": "platform_api"
          }
        ],
        "source_of_record": null,
        "source_mechanism": "precedence",
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        "source_quality": "authoritative",
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
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      "rcg": {
        "grade": "A",
        "score": 87,
        "caps": [],
        "applied_factors": 7
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      "last_price": 0.09,
      "implied_probability": 0.09,
      "volume_24h_usd": 0,
      "volume_total_usd": 6236.2206,
      "settlement_style": "touch",
      "direction": null,
      "threshold": null,
      "question_id": null,
      "also_on": null,
      "tags": [
        "2027",
        "billionaire",
        "legislation",
        "mamdani billionaire tax",
        "nyc",
        "tax"
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      "eligibility_screens": [
        {
          "regime": "ciro-26-0076",
          "screen_version": "v1",
          "status": "not_eligible",
          "reasons": [
            "category_not_permitted"
          ],
          "bucket": null,
          "screened_at": "2026-06-12"
        }
      ]
    }
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  "resolution_log": [],
  "_provenance": {
    "source": "clearmarket.fyi",
    "ref": "CM-EVT-NR6YTLKDN0",
    "terms": "Attribution required. clearmarket.fyi"
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