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The documents behind the prediction market fight

The court opinions, injunction orders, cease-and-desist letters, Supreme Court petitions and CFTC orders that decide where Kalshi, Polymarket and the rest can operate. We read each one in full, summarize it in plain English and link the copy posted by the court or agency that issued it.

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The prediction market document library, Prediction Market Laws (last updated Nov. 7, 2026), https://predictionmarketlaws.com/documents.

APA

Prediction Market Laws. (2026, November 7). The prediction market document library. https://predictionmarketlaws.com/documents

Entries
22
Original files linked
26
Court rulings
9
Cease-and-desist letters
11
Last checked
Every document in the library, newest first
DateDocumentTypeWhere
United States and CFTC v. Utah: the federal complaintU.S. District Court for the District of Utah, No. 2:26-cv-01055PendingOriginal (opens the PDF at Commodity Futures Trading Commission)ComplaintUtah
Sixth Circuit opinion in Kalshi's Ohio and Tennessee appealsU.S. Court of Appeals for the Sixth Circuit, Nos. 26-3196 and 26-5235Ohio affirmed; Tennessee injunction vacatedOriginal (opens the PDF at U.S. Court of Appeals for the Sixth Circuit)Court opinionOhio, Tennessee
Missouri Attorney General cease-and-desist letter to KalshiMissouri Attorney General's Office30 days to confirmOriginal (opens the PDF at Missouri Attorney General's Office)Cease-and-desist letterMissouri
Crypto.com's Supreme Court petition in North American Derivatives Exchange v. NevadaSupreme Court of the United States, No. 26-344PendingOriginal (opens the PDF at Supreme Court of the United States)Supreme Court petitionNevada
Robinhood's Supreme Court petition in Robinhood v. DreitzerSupreme Court of the United States, No. 26-338PendingOriginal (opens the PDF at Supreme Court of the United States)Supreme Court petitionNevada
New Jersey's Supreme Court petition in Flaherty v. KalshiEXSupreme Court of the United States, No. 26-299Pending; Kalshi's response due Dec. 7, 2026Original (opens the PDF at Supreme Court of the United States)Supreme Court petitionNew Jersey
Ingham County court order granting Michigan's injunction against KalshiIngham County Circuit Court, Michigan, No. 26-1087-CZPreliminary injunction grantedOriginal (opens the PDF at Michigan Attorney General)Injunction orderMichigan
CFTC order over trading on advance copies of the President's speechesCommodity Futures Trading Commission, CFTC Docket No. 26-06Settled; respondent neither admitted nor deniedOriginal (opens the PDF at Commodity Futures Trading Commission)CFTC orderFederal
Ninth Circuit opinion in Kalshi v. NevadaU.S. Court of Appeals for the Ninth Circuit, No. 25-7516Affirmed in part, sent back in partOriginal (opens the PDF at U.S. Court of Appeals for the Ninth Circuit)Court opinionNevada
CFTC order settling charges against George Santos over a Kalshi contractCommodity Futures Trading Commission, CFTC Docket No. 26-05Settled; respondent neither admitted nor deniedOriginal (opens the PDF at Commodity Futures Trading Commission)CFTC orderFederal
New York federal court order refusing Kalshi an injunction pending appealU.S. District Court for the Southern District of New York, No. 1:25-cv-08846Emergency injunction deniedOriginal (opens the PDF at InGame, copy of the court filing)Court orderNew York
King County court order granting Washington's injunction against KalshiKing County Superior Court, Washington, No. 26-2-10264-3 SEAPreliminary injunction granted; terms set laterOriginal (opens the PDF at Washington Attorney General's Office)Injunction orderWashington
Third Circuit opinion in Kalshi v. New JerseyU.S. Court of Appeals for the Third Circuit, No. 25-1922Injunction affirmed, 2–1Original (opens the PDF at CourtListener, from the court's filing system)Court opinionNew Jersey
Illinois Gaming Board cease-and-desist letter to Polymarket USIllinois Gaming BoardNo deadline setOriginal (opens the PDF at Illinois Gaming Board)Cease-and-desist letterIllinois
Connecticut cease-and-desist orders to Kalshi, Robinhood and Crypto.comConnecticut Department of Consumer Protection, Gaming DivisionStop immediately; let residents withdraw fundsOriginals (opens the PDF at Connecticut Department of Consumer Protection)Cease-and-desist letterConnecticut
New York State Gaming Commission cease-and-desist letter to KalshiNew York State Gaming CommissionStop immediatelyOriginal (opens the PDF at New York State Gaming Commission)Cease-and-desist letterNew York
Maryland federal court opinion denying Kalshi an injunctionU.S. District Court for the District of Maryland, No. 1:25-cv-01283Preliminary injunction deniedOriginal (opens the PDF at GovInfo, U.S. Government Publishing Office)Court opinionMaryland
New Jersey federal court opinion granting Kalshi an injunctionU.S. District Court for the District of New Jersey, No. 1:25-cv-02152Preliminary injunction grantedOriginal (opens the PDF at GovInfo, U.S. Government Publishing Office)Court opinionNew Jersey
Illinois Gaming Board cease-and-desist letters to Kalshi, Robinhood and Crypto.comIllinois Gaming BoardNo deadline setOriginals (opens the PDF at Illinois Gaming Board)Cease-and-desist letterIllinois
Montana Gambling Control Division cease-and-desist letter to KalshiMontana Department of Justice, Gambling Control DivisionNo deadline setOriginal (opens the PDF at Scripps News, copy of the letter)Cease-and-desist letterMontana
Nevada Gaming Control Board cease-and-desist letter to KalshiNevada Gaming Control BoardDeadline March 14, 2025Original (opens the PDF at Wolters Kluwer, copy of the court filing)Cease-and-desist letterNevada
D.C. federal court order striking down the CFTC's ban on Kalshi's election contractsU.S. District Court for the District of Columbia, No. 1:23-cv-03257Summary judgment for Kalshi; CFTC order vacatedOriginal (opens the PDF at CourtListener, from the court's filing system)Court orderFederal

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