Which states have sued Kalshi?

14 states have sued or charged Kalshi in our records: Arizona, Arkansas, Connecticut, Kentucky, Massachusetts, Michigan, Nevada, New Jersey, New Mexico, New York, Rhode Island, Utah, Washington and Wisconsin. Kalshi has in turn sued officials in 10 cases, and the CFTC has sued several states on its side.

Has Kalshi been criminally charged?

Yes, in 2 states: Utah (28 October 2026) and Arizona (17 March 2026). Each case is listed below with its source; charges are allegations until a court decides them.

Is Kalshi’s fight going to the Supreme Court?

New Jersey has asked it to. Procedural order extending Kalshi's time to respond to NJ's petition (not a merits ruling). Status: Extended again on 30 Oct 2026; response now due 7 Dec 2026.

Is Kalshi still legal?

Kalshi is a CFTC-designated exchange, legal under federal law. Whether states can stop its sports contracts is what these cases decide, and courts have split. Where it is open today is on each state’s page.

Data · reference table

Kalshi lawsuits: every state case, charge and ruling

103 dated actions involving Kalshi in our records, the latest on 6 November 2026: 14 states suing or charging it, 10 suits Kalshi brought against state officials, the CFTC’s suits against states, rulings and cease-and-desist letters. Newest first, each with its primary source. Every action on every platform is in the regulation tracker.

Each row is an entry on a state page, read from a court docket, an order, a regulator’s own letter or the legislature’s record. Status is as of the date the state was last checked. Last updated 9 November 2026. Free to cite with a link to this page. Not legal advice.

States suing or charging Kalshi (16)

Arkansas, 4 November 2026: Arkansas Attorney General Tim Griffin (Independence County Circuit Court, No. 32CV-26-717). Status: Filed; no ruling found Source
Utah, 28 October 2026: Utah Attorney General's Office (Third Judicial District Court, Salt Lake County). Status: Pending in state court Source
Utah, 20 October 2026: Utah Attorney General Derek Brown (Third Judicial District Court, Salt Lake County, No. 260908356). Status: Pending; challenged by the federal government's suit of 26 Oct Source
New Jersey, 2 September 2026: New Jersey Attorney General / DGE (Flaherty v. KalshiEX, U.S. Supreme Court No. 26-299). Status: Pending; 39 states and D.C. filed in support on 7 Oct 2026, and Kalshi's response is due 7 Dec Source
Connecticut, 26 August 2026: State of Connecticut (AG Tong / DCP). Status: Remand motion fully briefed (8 Oct 2026); no ruling Source
New York, 31 July 2026: New York Attorney General (Letitia James). Status: The AG's remand motion is still pending before Judge Broderick; the parties are disputing a new AG subpoena to Kalshi Source
Kentucky, 19 June 2026: Kalshi (removal): Commonwealth of Kentucky v. KalshiEX LLC, E.D. Ky. No. 3:26-cv-00048 (Judge Wier). Status: Remand motion pending (docket activity to 22 Sep 2026). Source
Kentucky, 17 June 2026: Kentucky Attorney General Russell Coleman (Franklin Circuit Court Nos. 26-CI-00689 and 26-CI-00696). Status: Removed to E.D. Ky.; Kentucky's motions to remand are pending. Source
New Mexico, 4 June 2026: New Mexico Department of Justice (Attorney General Raúl Torrez). Status: State’s motion to remand to state court fully briefed on 18 Aug 2026; no ruling on the docket as of 4 Oct 2026 Source
Rhode Island, 21 May 2026: Rhode Island Attorney General Peter F. Neronha. Status: Removed to federal court (D.R.I. No. 1:26-cv-333); PI motions heard 3 Aug 2026, no ruling as of 9 Nov Source
Wisconsin, 23 April 2026: Wisconsin Department of Justice (AG Josh Kaul). Status: Removed to W.D. Wis. on 24 Apr 2026; the state's remand motions and its PI motion against Kalshi and its co-defendants were fully briefed by 7 Aug 2026, with no ruling on the docket. Polymarket's Blockratize was dropped on 10 Jun 2026; QCX (Polymarket US) remains Source
Washington, 27 March 2026: Washington Attorney General (Nick Brown). Status: Pending; PI in effect Source
Arizona, 17 March 2026: Arizona Attorney General (Kris Mayes). Status: Prosecution enjoined by the federal PI of 5 May 2026; the AG is seeking to lift it Source
Michigan, 5 March 2026: Michigan Attorney General (Dana Nessel). Status: Pending; PI in effect. Kalshi's appeal of the remand (6th Cir. No. 26-1639) is in abeyance Source
Nevada, 17 February 2026: Nevada Gaming Control Board. Status: Pending in state court; Kalshi's appeal of the remand (9th Cir. No. 26-1304) is pending, its opening brief deadline extended on 22 Sep 2026 Source
Massachusetts, 12 September 2025: Massachusetts Attorney General (Andrea Joy Campbell). Status: Pending; PI appeal before the SJC (SJC-13906), argued 4 May 2026 and undecided as of 9 Nov Source

Kalshi suing states (10)

Missouri, 27 October 2026: KalshiEX LLC v. Hanaway et al., E.D. Mo. No. 4:26-cv-01860. Status: Motion pending; the state asked on 5 Nov to consolidate the case with Novig's Source
Illinois, 23 June 2026: KalshiEX LLC (plaintiff) v. Raoul et al., N.D. Ill. No. 1:26-cv-07363 (reassigned to Judge Pacold). Status: PI granted (opinion 2 Oct 2026, injunction entered 30 Oct); Illinois appealed (7th Cir. No. 26-3267, consolidated) Source
Minnesota, 27 May 2026: KalshiEX LLC (federal suit v. AG Ellison et al., D. Minn. 0:26-cv-02778). Status: Preliminary injunction granted on 27 Jul 2026; state answered on 17 Aug 2026 Source
Rhode Island, 21 May 2026: KalshiEX LLC, federal suit v. Lottery Director Mark Furcolo, AG Neronha and DBR Gaming Administrator Christina Tobiasz (D.R.I. 1:26-cv-00327). Status: PI motions heard 3 Aug 2026; no ruling as of 9 Nov Source
Montana, 12 April 2026: KalshiEX LLC (federal suit v. AG Knudsen et al., D. Mont. 6:26-cv-00028). Status: Dismissed on 21 Sep 2026 under the joint stipulation Source
Iowa, 11 March 2026: KalshiEX LLC (U.S. District Court, S.D. Iowa). Status: PI denied on 8 Sep 2026; appeal pending (8th Cir. No. 26-2874) Source
Utah, 23 February 2026: KalshiEX LLC (U.S. District Court, D. Utah, No. 2:26-cv-00151). Status: Judgment for the state on 4 Aug 2026; on appeal (10th Cir. No. 26-4100), with Kalshi's reply due 12 Nov 2026 Source
Ohio, 7 October 2025: KalshiEX LLC (plaintiff) v. Schuler et al., S.D. Ohio No. 2:25-cv-01165. Status: Stayed in the district court until the Sixth Circuit's mandate issues; the 25 Sep 2026 judgment was docketed on 28 Sep Source
Maryland, 21 April 2025: KalshiEX LLC (plaintiff) v. Martin et al., D. Md. No. 1:25-cv-01283. Status: District case continues; PI denied (see 2025-08-01). Source
New Jersey, 28 March 2025: KalshiEX LLC (plaintiff) v. Flaherty et al., D.N.J. No. 1:25-cv-02152. Status: Pending in district court; parties filed a joint status report 16 Jun 2026 after the Third Circuit ruling. Source

The federal government suing states (5)

Utah, 26 October 2026: United States and CFTC v. State of Utah and AG Derek Brown, D. Utah No. 2:26-cv-01055. Status: Hearing set for 20 Nov 2026 Source
Kentucky, 23 June 2026: U.S. CFTC / United States (plaintiff) v. Commonwealth of Kentucky et al., E.D. Ky. No. 3:26-cv-00049 (Judge Meredith). Status: Pending; no ruling. Source
New York, 24 April 2026: United States & CFTC, federal suit v. New York officials (S.D.N.Y. 1:26-cv-03404, Judge Schofield). Status: PI motion pending; supplemental filings on the CFTC's October rules through 23 Oct 2026 Source
Illinois, 2 April 2026: U.S. CFTC / United States (plaintiff) v. State of Illinois et al., N.D. Ill. No. 1:26-cv-03659 (Judge Pacold). Status: PI granted (opinion 2 Oct 2026, injunction entered 30 Oct); Illinois appealed (7th Cir. No. 26-3266, consolidated) Source
Connecticut, 2 April 2026: United States & CFTC, federal suit v. State of Connecticut (D. Conn. 3:26-cv-00498). Status: PI motion fully briefed (29 Oct 2026), as is the state's motion to dismiss; no ruling Source

Tribes suing Kalshi (3)

California, 16 September 2026: U.S. Court of Appeals for the Ninth Circuit (Blue Lake Rancheria; Chicken Ranch Rancheria of Me-Wuk Indians v. Kalshi). Status: Mandate issued 8 Oct 2026; on remand Judge Corley granted the tribes a preliminary injunction on 4 Nov 2026 Source
New Mexico, 12 May 2026: Mescalero Apache Tribe and the Pueblos of Isleta, Pojoaque and Sandia (U.S. District Court, D.N.M.). Status: Kalshi’s motion to dismiss and the tribes’ preliminary-injunction motion were heard on 23 Sep 2026; no ruling as of the docket update of 25 Sep 2026 Source
Wisconsin, 11 May 2026: U.S. District Court, W.D. Wis. (Judge Conley), Ho-Chunk Nation v. Kalshi. Status: Interlocutory appeal allowed by the Seventh Circuit on 27 Oct 2026 (No. 26-8020) Source

Full timeline

Rulings, letters and the joint briefs states file in Kalshi’s cases, alongside the lawsuits above. Why the cases split the courts: the CFTC’s order to stop blocking states and our Kalshi review.

Actions involving Kalshi in US states, newest first.
Date	What happened	State	Platforms named	Source
6 Nov 2026	Multistate amicus brief (Second Circuit, No. 26-1835) · Attorneys General of Ohio, Nevada, 35 other states, D.C. and the Northern Mariana IslandsBrief supporting New York's Gaming Commission in Kalshi's appeal from the denial of a preliminary injunction against New York's cease-and-desist, arguing federal commodities law does not displace state gambling law.Status: Appeal pending	39 states Alabama, Alaska, Arizona, Arkansas, California, Connecticut, Delaware, Hawaii, Idaho, Illinois, Iowa, Kansas, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, Ohio, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Utah, Vermont, Washington, Washington, D.C., West Virginia, Wyoming	Kalshi	oag.ca.gov ↗
4 Nov 2026	Multistate amicus brief (Seventh Circuit, Nos. 26-2636, 26-2675, 26-2696) · Attorneys General of Ohio, Nevada, 36 other states, D.C. and the Northern Mariana IslandsBrief supporting Wisconsin in the CFTC's appeal from the denial of a preliminary injunction against Wisconsin's gambling suits, arguing the Commodity Exchange Act does not clearly displace state power over gambling.Status: Appeal pending	40 states Alabama, Alaska, Arizona, Arkansas, California, Connecticut, Delaware, Hawaii, Idaho, Illinois, Iowa, Kansas, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, Ohio, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Utah, Vermont, Washington, Washington, D.C., West Virginia, Wisconsin, Wyoming	Crypto.com Prediction Markets, Kalshi, Polymarket	oag.ca.gov ↗
4 Nov 2026	Lawsuit · Arkansas Attorney General Tim Griffin (Independence County Circuit Court, No. 32CV-26-717)Arkansas sued KalshiEX and Kalshi Inc. under its Deceptive Trade Practices Act, alleging unlicensed gambling on sports and other events, including by users as young as 18, and seeking restitution, penalties, taxes and an injunction.Status: Filed; no ruling found	Arkansas	Kalshi	arkansasag.gov ↗
4 Nov 2026	Rehearing denied · US Court of Appeals, Ninth Circuit (Judges Nelson, Bade and Lee)The court denied Kalshi's petition for panel rehearing and rehearing en banc in the consolidated Nevada appeals; no judge requested a vote on en banc rehearing. The August 2026 rulings for Nevada stand.Status: Final in the Ninth Circuit	Nevada	Kalshi	storage.courtlistener.com ↗
4 Nov 2026	Preliminary injunction · US District Court, N.D. Cal. (Judge Corley), Blue Lake Rancheria et al. v. Kalshi, No. 3:25-cv-06162On remand, the court barred Kalshi from offering any sports contracts on the plaintiff tribes' Indian lands. The order covers those tribal lands only, not California as a whole.Status: In effect; Kalshi must report on compliance within 21 days	California	Kalshi	storage.courtlistener.com ↗
3 Nov 2026	Injunction pending appeal denied · US Court of Appeals, Second CircuitThe panel refused to block enforcement while Kalshi's appeals against New York (No. 26-1835) and Connecticut (No. 26-2239) and Coinbase's appeal against Connecticut (No. 26-2297) proceed, so both states can enforce in the meantime.Status: Appeals pending, heard in tandem	Connecticut, New York	Kalshi	courtlistener.com ↗
30 Oct 2026	Preliminary injunction · US District Court, N.D. Ill. (Judge Pacold)After opinions of 2 Oct 2026, the court entered preliminary injunctions against Illinois officials in KalshiEX v. Raoul, Coinbase v. Raoul and United States v. Illinois, barring enforcement of state gambling law against those plaintiffs' exchange-traded contracts.Status: In effect; Illinois appealed (7th Cir. Nos. 26-3265 to 26-3267, consolidated), its brief due 14 Dec 2026	Illinois	Kalshi	courtlistener.com ↗
28 Oct 2026	Multistate amicus brief (Tenth Circuit, No. 26-4100) · Attorneys General of Ohio, Nevada, 35 other states, D.C. and the Northern Mariana IslandsBrief supporting Utah in Kalshi's appeal from the Utah judgment, arguing Kalshi's preemption theory would leave sports betting largely unregulated and that the CFTC's new reading deserves no deference.Status: Appeal pending; Kalshi's reply due 12 Nov 2026	39 states Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Hawaii, Idaho, Illinois, Iowa, Kansas, Louisiana, Maine, Massachusetts, Michigan, Minnesota, Mississippi, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Oregon, Rhode Island, South Carolina, South Dakota, Tennessee, Utah, Vermont, Virginia, Washington, Washington, D.C., West Virginia, Wisconsin, Wyoming	Kalshi	oag.ca.gov ↗
28 Oct 2026	Criminal charges · Utah Attorney General's Office (Third Judicial District Court, Salt Lake County)Utah filed criminal Informations against KalshiEX LLC and two of its co-founders. They are listed as exhibits to the CFTC's federal motion to halt Utah's enforcement; we have not read the charges themselves.Status: Pending in state court	Utah	Kalshi	courtlistener.com ↗
27 Oct 2026	Lawsuit (platform v. state) · KalshiEX LLC v. Hanaway et al., E.D. Mo. No. 4:26-cv-01860Kalshi sued Missouri's Attorney General and the Missouri Gaming Commission and its members, and on 6 Nov moved for a temporary restraining order and preliminary injunction.Status: Motion pending; the state asked on 5 Nov to consolidate the case with Novig's	Missouri	Kalshi	courtlistener.com ↗
27 Oct 2026	Appeal allowed · US Court of Appeals, Seventh Circuit, No. 26-8020In Ho-Chunk Nation v. Kalshi, the court granted Kalshi's petition for an interlocutory appeal of the district court's May 2026 ruling and denied the tribe's cross-petition.Status: Appeal to be docketed; district case stayed	Wisconsin	Kalshi	storage.courtlistener.com ↗
26 Oct 2026	Lawsuit (federal government v. state) · United States and CFTC v. State of Utah and AG Derek Brown, D. Utah No. 2:26-cv-01055The federal government sued to declare Utah's gambling laws preempted as applied to CFTC-registered exchanges, after Utah's 20 Oct suit against Kalshi. It moved for a temporary restraining order and preliminary injunction on 29 Oct.Status: Hearing set for 20 Nov 2026	Utah	Kalshi	cftc.gov ↗
20 Oct 2026	Lawsuit · Utah Attorney General Derek Brown (Third Judicial District Court, Salt Lake County, No. 260908356)Utah sued Kalshi entities and two Susquehanna trading firms, alleging Kalshi's contracts are illegal gambling under Utah law and seeking to stop them in Utah and recover profits and damages. Described in the CFTC's federal complaint, which quotes it.Status: Pending; challenged by the federal government's suit of 26 Oct	Utah	Kalshi	cftc.gov ↗
7 Oct 2026	Multistate amicus brief (US Supreme Court, No. 26-299) · Attorneys General of Ohio, 38 other states and D.C.Brief supporting New Jersey's petition for Supreme Court review of the Third Circuit's ruling for Kalshi, arguing courts are divided over whether the Commodity Exchange Act preempts state sports-gambling laws.Status: Petition pending; Kalshi's response due 7 Dec 2026	40 states Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Hawaii, Idaho, Illinois, Iowa, Kansas, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, Nevada, New Hampshire, New Mexico, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Utah, Vermont, Virginia, Washington, D.C., West Virginia, Wisconsin, Wyoming	Kalshi	supremecourt.gov ↗
25 Sept 2026	Appellate ruling · U.S. Court of Appeals for the Sixth Circuit (KalshiEX v. Schuler / v. Orgel, Nos. 26-3196/5235; Gibbons, Clay, Bloomekatz)Unanimous panel held Kalshi's sports contracts are not 'swaps' and that the CEA would not preempt Ohio gambling law even if they were; affirmed the denial of Kalshi's PI.Status: Decided; remanded. No mandate, rehearing petition or cert petition was confirmed as of 29 Sep 2026.	Ohio, Tennessee	Kalshi	opn.ca6.uscourts.gov ↗
22 Sept 2026	Final order · U.S. Supreme Court (Clerk), No. 26-299Procedural order extending Kalshi's time to respond to NJ's petition (not a merits ruling).Status: Extended again on 30 Oct 2026; response now due 7 Dec 2026.	New Jersey	Kalshi	supremecourt.gov ↗
17 Sept 2026	Appeal · KalshiEX LLC (U.S. Court of Appeals, Eighth Circuit, No. 26-2874)Kalshi appealed the denial of its preliminary injunction in KalshiEX v. Bird. The Eighth Circuit docketed the appeal and set a briefing schedule on 17 Sep 2026.Status: Pending; Kalshi's opening brief is due 6 Nov 2026	Iowa	Kalshi	storage.courtlistener.com ↗
17 Sept 2026	Settlement / joint stipulation of dismissal · Montana Attorney General, Gambling Control Division and KalshiEX LLC (joint stipulation, D. Mont.)Montana agreed not to bring or refer any enforcement action, investigation or cease-and-desist proceeding against Kalshi over event contracts traded on a DCM until Kalshi’s Ninth Circuit rehearing petition in KalshiEX v. Assad is denied or decided en banc, and then to give 30 days’ written notice. Kalshi dismissed its suit, with prejudice as to the Lottery and Sports Wagering Commission members and without prejudice as to the AG and GCD.Status: Case dismissed 21 Sep 2026. The Ninth Circuit denied the rehearing petition on 4 Nov 2026, so Montana may now act after giving Kalshi 30 days' written notice	Montana	Kalshi	storage.courtlistener.com ↗
16 Sept 2026	Cease-and-desist · Missouri Attorney General Catherine HanawayLetters to QCX LLC (Polymarket US), KalshiEX, Foris DAX (Crypto.com) and one other operator (dated 16 Sep) and to Ludlow Exchange (Novig) and Underdog (dated 17 Sep) say their sports event contracts are unlicensed sports wagering under Missouri law. Each must stop or get a Missouri Gaming Commission licence, pay state taxes and fees, and bar users under 21; announced 18 Sep 2026.Status: Each letter asks for confirmation of compliance within 30 days of its date (mid-October 2026); no lawsuit found as of 4 Oct 2026	Missouri	Crypto.com Prediction Markets, Kalshi, Novig, Polymarket US, Underdog Predictions	ago.mo.gov ↗
16 Sept 2026	Tribal lawsuit / court ruling (IGRA) · U.S. Court of Appeals for the Ninth Circuit (Blue Lake Rancheria; Chicken Ranch Rancheria of Me-Wuk Indians v. Kalshi)Reversed the N.D. Cal. denial of a preliminary injunction: the tribes are likely to succeed on IGRA claims that Kalshi's sports contracts entered from tribal land are unauthorized class III gaming; CEA exclusivity does not displace IGRA. Lanham Act claim rejected.Status: Mandate issued 8 Oct 2026; on remand Judge Corley granted the tribes a preliminary injunction on 4 Nov 2026	California	Kalshi	cdn.ca9.uscourts.gov ↗
14 Sept 2026	Appellate motion · Arizona AG / ADG (Ninth Circuit filing)Arizona moved for summary disposition or dismissal in CFTC v. Johnson (No. 26-4281), aiming to dissolve the PI after the Nevada ruling.Status: The CFTC opposed on 24 Sep 2026 and Arizona replied on 1 Oct; no ruling as of 9 Nov 2026	Arizona	Crypto.com Prediction Markets, Kalshi	courtlistener.com ↗
11 Sept 2026	Interlocutory appeal certified · U.S. District Court, W.D. Wis. (Judge Conley), Ho-Chunk Nation v. KalshiThe court certified its 11 May 2026 ruling for interlocutory appeal and stayed the case. Kalshi petitioned the Seventh Circuit for permission to appeal on 21 Sep 2026 (No. 26-8020).Status: Seventh Circuit granted Kalshi's petition to appeal on 27 Oct 2026 (No. 26-8020); district case stayed	Wisconsin	Kalshi	courtlistener.com ↗
9 Sept 2026	Rehearing petition · KalshiEX LLC (Ninth Circuit filing)Kalshi petitioned for panel rehearing and rehearing en banc in the consolidated appeals (25-7516, 25-7187, 25-7831). Kalshi filed a status report on 25 Sep 2026.Status: Denied on 4 Nov 2026; no judge requested an en banc vote	Nevada	Kalshi	courtlistener.com ↗
8 Sept 2026	Injunction pending appeal denied · U.S. Court of Appeals for the Tenth Circuit (Judges Hartz and Kelly)In KalshiEx v. Cox (No. 26-4100), the court denied Kalshi's emergency motion for an injunction pending appeal, leaving the district court's judgment for Utah in place.Status: Appeal pending; Utah filed its brief on 21 Oct 2026 and Kalshi's reply is due 12 Nov	Utah	Kalshi	courtlistener.com ↗
8 Sept 2026	Preliminary injunction denied · U.S. District Court, S.D. Iowa (Judge Stephen H. Locher)In KalshiEX v. Bird (No. 4:26-cv-00109), the court held Kalshi is unlikely to show the Commodity Exchange Act preempts Iowa's gambling laws, and it denied an injunction against the Attorney General and the IRGC. The order notes the AG had promised not to open an investigation before the motion was decided.Status: Kalshi appealed (8th Cir. No. 26-2874); pending	Iowa	Kalshi	storage.courtlistener.com ↗
2 Sept 2026	Lawsuit · New Jersey Attorney General / DGE (Flaherty v. KalshiEX, U.S. Supreme Court No. 26-299)NJ filed a certiorari petition asking the Supreme Court to reverse the Third Circuit, citing a split with the Ninth Circuit. Docketed 8 Sep 2026; Kalshi's response deadline was extended to 9 Nov 2026.Status: Pending; 39 states and D.C. filed in support on 7 Oct 2026, and Kalshi's response is due 7 Dec	New Jersey	Kalshi	njoag.gov ↗
1 Sept 2026	Preliminary injunction · Ingham County Circuit Court (Judge Aquilina)The PI requires Kalshi to keep geofencing Michigan out of its sports contracts, with a $500,000/day fine for violations (release dated 2 Sep 2026).Status: In effect	Michigan	Kalshi	michigan.gov ↗
28 Aug 2026	Appellate ruling · US Court of Appeals, Ninth CircuitIn KalshiEX v. Assad (No. 25-7516, published), the court affirmed the dissolution of Kalshi's PI as to sports contracts and remanded for the district court to consider election contracts.Status: Final in the Ninth Circuit: panel and en banc rehearing denied on 4 Nov 2026	California, Nevada, Oregon	Kalshi	cdn.ca9.uscourts.gov ↗
27 Aug 2026	Preliminary injunction denied without prejudice · U.S. District Court, D. Mont. (Judge Molloy)The court refused to extend a stipulated stay, lifted it, ordered the state to respond to the complaint within 21 days, and denied Kalshi’s preliminary-injunction motion without prejudice.Status: Superseded by the dismissal of 21 Sep 2026	Montana	Kalshi	courtlistener.com ↗
26 Aug 2026	Lawsuit · State of Connecticut (AG Tong / DCP)CT filed a verified complaint in Hartford Superior Court (HHD-CV26-6230345-S) seeking temporary and permanent injunctions, disgorgement, restitution and CUTPA penalties. Kalshi removed it the same day (D. Conn. 3:26-cv-01382).Status: Remand motion fully briefed (8 Oct 2026); no ruling	Connecticut	Kalshi	storage.courtlistener.com ↗
13 Aug 2026	Preliminary injunction (final order on terms) · King County Superior CourtThe order bars sports, elections, politics, entertainment, culture, tech & science, and mentions contracts, with an IP/residency geofence by 19 Aug and a multi-source geofence by 2 Sep. Per the AG, the WA Court of Appeals denied Kalshi a stay.Status: In effect; the outcome of Kalshi's reconsideration motion (hearing 2 Sep) is UNVERIFIED	Washington	Kalshi	atg.wa.gov ↗
13 Aug 2026	Lawsuit · Mayor and City of Baltimore (municipal, not state)Baltimore filed Consumer Protection Ordinance suits in Baltimore City Circuit Court against Kalshi (with brokers including Coinbase and Webull as co-defendants) and against Polymarket US (QCX/Blockratize), seeking penalties, injunctions and restitution. Kalshi removed its case to D. Md. on 14 Aug 2026 (No. 1:26-cv-03217) and QCX removed on 17 Aug 2026 (No. 1:26-cv-03253).Status: In federal court: the Kalshi case was stayed by stipulation on 1 Oct 2026; Polymarket's answer is due 8 Dec	Maryland	Kalshi, Polymarket US	baltimorecity.gov ↗
7 Aug 2026	Preliminary injunction denied · US District Court, D. Conn. (Judge Oliver), KalshiEX v. Cafferelli (3:25-cv-02016)The court denied Kalshi's PI against CT enforcement (memorandum dated 7 Aug, docketed 10 Aug). An injunction pending appeal was denied on 15 Aug, and the Second Circuit denied a temporary injunction on 19 Aug, referring the motion to a panel.Status: Appeal pending (2d Cir. No. 26-2239); injunction pending appeal refused 3 Nov 2026; Connecticut's brief due 20 Nov	Connecticut	Kalshi	storage.courtlistener.com ↗
4 Aug 2026	Summary judgment for the state · U.S. District Court, D. Utah (Judge Shelby)The court held that the Commodity Exchange Act does not preempt Utah's enforcement of its anti-gambling laws against Kalshi, granted the state officials summary judgment and denied Kalshi's preliminary-injunction motion as moot.Status: On appeal (10th Cir. No. 26-4100); the court denied Kalshi's motion for an injunction pending appeal as moot on 14 Oct 2026	Utah	Kalshi	storage.courtlistener.com ↗
31 Jul 2026	Lawsuit · New York Attorney General (Letitia James)The AG filed an Executive Law 63(12) verified petition in NY County Supreme Court. It seeks injunctions, restitution, disgorgement, treble penalties and $100,000 per offer of sports wagering. Kalshi removed it the same day (S.D.N.Y. 1:26-cv-06550).Status: The AG's remand motion is still pending before Judge Broderick; the parties are disputing a new AG subpoena to Kalshi	New York	Kalshi	storage.courtlistener.com ↗
27 Jul 2026	Preliminary injunction · U.S. District Court, D. Minn. (Judge Menendez)In the consolidated CFTC, Kalshi and Polymarket US cases, the court enjoined Minnesota from enforcing Minn. Stat. § 609.7615 against CFTC-registered designated contract markets until a final decision, finding the plaintiffs likely to succeed at least in part on express preemption. The order notes the statute may not be preempted in all its applications and that permanent relief may be much narrower.Status: In effect; the state answered Kalshi’s complaint on 17 Aug 2026 and a Rule 16 conference is set for 13 Oct 2026; no notice of appeal on the docket as of 23 Sep 2026	Minnesota	Kalshi, Polymarket US	govinfo.gov ↗
23 Jul 2026	Settlement / joint stipulation · NGCB and Kalshi (filed in First Judicial District Court)In place of contempt, Kalshi admitted the order had been violated and agreed to a third-party multi-source geofence by 12 Aug 2026, with a $120,000/day penalty for missing the deadline (announced 24 Jul).Status: In effect; compliance after 12 Aug is UNVERIFIED	Nevada	Kalshi	gaming.nv.gov ↗
20 Jul 2026	Preliminary injunction · King County Superior CourtThe court found Kalshi likely violated the Gambling Act and CPA and granted a PI; the final terms were to follow (release dated 21 Jul 2026).Status: Terms set by the 13 Aug order	Washington	Kalshi	atg.wa.gov ↗
7 Jul 2026	Preliminary injunction denied · US District Court, S.D.N.Y. (Judge Torres), KalshiEX v. Williams (1:25-cv-08846)The court denied Kalshi's PI against NYSGC enforcement. Injunction pending appeal was denied by the district court on 27 Jul and by the Second Circuit (temporary relief) on 29 Jul, with the motion referred to a panel.Status: Appeal pending (2d Cir. No. 26-1835); the Second Circuit refused an injunction pending appeal on 3 Nov 2026	New York	Kalshi	storage.courtlistener.com ↗
29 Jun 2026	TRO · Ingham County Circuit Court (Judge Aquilina)A 14-day TRO barred Kalshi from offering internet sports betting in Michigan, required geolocation, and set a $120,000/day fine for noncompliance.Status: Superseded by the PI of 1 Sep 2026	Michigan	Kalshi	michigan.gov ↗
23 Jun 2026	Lawsuit · KalshiEX LLC (plaintiff) v. Raoul et al., N.D. Ill. No. 1:26-cv-07363 (reassigned to Judge Pacold)Kalshi sued to block SB 3019 and IL gambling laws and sought an emergency TRO/PI. After a joint status report on 29 Jun 2026, the TRO hearing was stricken, and the PI was fully briefed (reply 24 Jul 2026).Status: PI granted (opinion 2 Oct 2026, injunction entered 30 Oct); Illinois appealed (7th Cir. No. 26-3267, consolidated)	Illinois	Kalshi	courtlistener.com ↗
23 Jun 2026	Lawsuit · U.S. CFTC / United States (plaintiff) v. Commonwealth of Kentucky et al., E.D. Ky. No. 3:26-cv-00049 (Judge Meredith)CFTC sued Kentucky, Gov. Beshear, AG Coleman, the Revenue Commissioner and KHRGC to block the AG's suits and the HB 757 tax as preempted. It moved for a PI on 30 Jun 2026. The AG moved to dismiss on 24 Aug 2026, and cross-motions for summary judgment were briefed through 21 Sep 2026. The Coalition for Fair Markets is also a party.Status: Pending; no ruling.	Kentucky	Kalshi, Polymarket US	cftc.gov ↗
19 Jun 2026	Lawsuit · Kalshi (removal): Commonwealth of Kentucky v. KalshiEX LLC, E.D. Ky. No. 3:26-cv-00048 (Judge Wier)Kalshi removed the AG's suit with its co-defendants' consent. Kentucky moved to remand; on 4 Sep 2026 the court deferred defendants' answer deadline to 30 days after the remand ruling.Status: Remand motion pending (docket activity to 22 Sep 2026).	Kentucky	Kalshi	courtlistener.com ↗
17 Jun 2026	Lawsuit · Kentucky Attorney General Russell Coleman (Franklin Circuit Court Nos. 26-CI-00689 and 26-CI-00696)AG sued Kalshi entities (with brokers including Coinbase and Webull as distributors) and QCX LLC d/b/a Polymarket US, under the Consumer Protection Act and gambling laws, over unlicensed sports wagering.Status: Removed to E.D. Ky.; Kentucky's motions to remand are pending.	Kentucky	Kalshi, Polymarket US	cftc.gov ↗
16 Jun 2026	Final order · Governor JB Pritzker / Illinois General Assembly (SB 3019)Statute (not a court or regulator order) redefining 'sports wagering' to include exchange-traded 'exchange wagers', requiring an IGB licence and imposing a per-contract tax, effective 1 Jul 2026.Status: In effect since 1 Jul 2026; challenged in Kalshi v. Raoul.	Illinois	Crypto.com Prediction Markets, Kalshi, Polymarket US	capitolnewsillinois.com ↗
12 Jun 2026	Multistate amicus brief (Sixth Circuit, KalshiEx LLC v. Schuler) · California AG Rob Bonta (in 37-AG coalition)California AG Rob Bonta joined a 37-AG amicus brief backing Ohio's right to enforce its gambling laws against Kalshi's sports contracts. The California AG release lists the co-signing states.Status: Brief filed; the Sixth Circuit ruled for Ohio and Tennessee on 25 Sep 2026	California, Pennsylvania	Kalshi	oag.ca.gov ↗
12 Jun 2026	Contempt motion · Nevada Gaming Control BoardNGCB asked the state court to hold Kalshi in contempt because investigators could still enter prohibited contracts from inside Nevada. The NGCB timeline dates the motion 4 Jun 2026; the press release is dated 12 Jun 2026.Status: Resolved by the joint stipulation of 23 Jul 2026	Nevada	Kalshi	gaming.nv.gov ↗
11 Jun 2026	Multistate amicus brief (Sixth Circuit, KalshiEx LLC v. Schuler, No. 26-3196) · Attorneys General of Nevada, Utah, 37 other states and D.C.Attorneys general of 28 states in our records signed the multistate amicus brief backing Ohio’s right to enforce its gambling laws against Kalshi’s sports contracts.Status: Sixth Circuit ruled for Ohio and Tennessee on 2026-09-25 (Nos. 26-3196/5235), holding the CEA does not preempt their gambling laws	28 states Alabama, Alaska, Arkansas, Colorado, Delaware, Hawaii, Idaho, Indiana, Iowa, Kansas, Louisiana, Maine, Minnesota, Mississippi, Nebraska, New Mexico, North Carolina, Oklahoma, Oregon, Rhode Island, South Carolina, South Dakota, Utah, Vermont, Virginia, Washington, D.C., Wisconsin, Wyoming	Kalshi	oag.ca.gov ↗
4 Jun 2026	Lawsuit · New Mexico Department of Justice (Attorney General Raúl Torrez)The state sued Kalshi in Santa Fe County district court, alleging its sports event contracts are unlicensed online sports betting offered to 18- to 20-year-olds despite the state’s minimum gaming age of 21, and seeking an injunction. Kalshi removed the case to federal court on 8 Jun 2026.Status: State’s motion to remand to state court fully briefed on 18 Aug 2026; no ruling on the docket as of 4 Oct 2026	New Mexico	Kalshi	nmdoj.gov ↗
28 May 2026	Motion to intervene (federal government v. state) · United States & CFTC, motion to intervene in KalshiEX v. Furcolo (D.R.I. 1:26-cv-00327)The US and CFTC moved to join Kalshi's suit, with a proposed complaint, arguing the CEA gives the CFTC exclusive jurisdiction over event contracts on DCMs and preempts Rhode Island's enforcement against Kalshi and QCX (Polymarket). Kalshi consented; the state defendants opposed.Status: Motion filed 28 May 2026; no ruling found in primary sources	Rhode Island	Kalshi, Polymarket US	cftc.gov ↗
27 May 2026	Lawsuit (platform v. state) · KalshiEX LLC (federal suit v. AG Ellison et al., D. Minn. 0:26-cv-02778)Kalshi sued Attorney General Ellison, Governor Walz and Jon Anglin, director of the DPS Alcohol and Gambling Division, to block the statute, claiming federal preemption and First Amendment violations.Status: Preliminary injunction granted on 27 Jul 2026; state answered on 17 Aug 2026	Minnesota	Kalshi	courtlistener.com ↗
21 May 2026	Lawsuit (platform v. state) · KalshiEX LLC, federal suit v. Lottery Director Mark Furcolo, AG Neronha and DBR Gaming Administrator Christina Tobiasz (D.R.I. 1:26-cv-00327)Kalshi sued to stop Rhode Island officials from enforcing state gaming law against its CFTC-listed event contracts, hours before the AG filed in state court, and moved for a preliminary injunction against the state action.Status: PI motions heard 3 Aug 2026; no ruling as of 9 Nov	Rhode Island	Kalshi	cftc.gov ↗
21 May 2026	Lawsuit · Rhode Island Attorney General Peter F. NeronhaThe AG asked the Superior Court (C.A. No. PC-2026-02753) to declare that Kalshi's and Polymarket's sports-related event contracts are gambling subject to the constitutional referendum requirement, and 'casino gaming' and 'online sports wagering' under Lottery control. The suit also seeks a permanent injunction, restitution and disgorgement.Status: Removed to federal court (D.R.I. No. 1:26-cv-333); PI motions heard 3 Aug 2026, no ruling as of 9 Nov	Rhode Island	Kalshi, Polymarket US	riag.ri.gov ↗
18 May 2026	Preliminary injunction · First Judicial District Court of Nevada (Judge Woodbury)The PI was granted from the bench on 3 Apr 2026, and the written order was entered on 18 May 2026 (per NGCB). It bars Kalshi from sports-, election- and entertainment-related contracts in Nevada.Status: In effect	Nevada	Kalshi	gaming.nv.gov ↗
12 May 2026	Lawsuit (tribes v. platform) · Mescalero Apache Tribe and the Pueblos of Isleta, Pojoaque and Sandia (U.S. District Court, D.N.M.)The tribes allege Kalshi’s sports contracts are class III gaming offered on their lands in breach of federal law and tribal gaming ordinances, which bar third-party mobile sports betting there.Status: Kalshi’s motion to dismiss and the tribes’ preliminary-injunction motion were heard on 23 Sep 2026; no ruling as of the docket update of 25 Sep 2026	New Mexico	Kalshi	courtlistener.com ↗
11 May 2026	Tribal lawsuit / court ruling (IGRA) · U.S. District Court, W.D. Wis. (Judge Conley), Ho-Chunk Nation v. KalshiIn the Ho-Chunk Nation's suit (filed 20 Aug 2025), the court let the tribe's claims that Kalshi offers unauthorized class III gaming on tribal land go forward, dismissed its Lanham Act and RICO claims, dismissed the claims against a co-defendant broker, and denied a preliminary injunction.Status: Interlocutory appeal allowed by the Seventh Circuit on 27 Oct 2026 (No. 26-8020)	Wisconsin	Kalshi	storage.courtlistener.com ↗
7 May 2026	Appellate ruling · U.S. Court of Appeals for the Fourth Circuit (KalshiEX v. Martin, No. 25-1892)Appeal (docketed 6 Aug 2025) was argued 7 May 2026. No opinion yet: Kalshi filed a notice about the CFTC's forthcoming regulation on 25 Sep 2026, and the standard CA4 opinion URLs return 404.Status: Argued; undecided as of 9 Nov 2026	Maryland	Kalshi	courtlistener.com ↗
5 May 2026	Regulator comment to CFTC · PGCB (Executive Director Kevin F. O'Toole)Comments to the CFTC say sports prediction markets are illegal sports wagering under Pennsylvania law, and stress underage (18-20) access.Status: submitted	Pennsylvania	Kalshi	gamingcontrolboard.pa.gov ↗
5 May 2026	Preliminary injunction · US District Court, D. Ariz. (Judge Liburdi), in United States & CFTC v. Arizona (2:26-cv-02246, consolidated)The US and CFTC sued on 2 Apr 2026 and won a TRO on 10 Apr and a PI on 5 May. The PI bars Arizona from criminal or civil enforcement of its gambling laws over event contracts on CFTC-regulated DCMs; Crypto.com (CDNA) intervened as a plaintiff on 23 Apr. The block came through this federal suit, not Kalshi's own motion.Status: In effect. Arizona's appeal (9th Cir. No. 26-4281) is pending; its 14 Sep 2026 motion for summary disposition was fully briefed on 1 Oct, with no ruling	Arizona	Crypto.com Prediction Markets, Kalshi	storage.courtlistener.com ↗
5 May 2026	Remand order · US District Court, W.D. Wash. (Judge Coughenour)Kalshi's removal of the AG case was undone by remand to King County Superior Court. The Ninth Circuit denied a stay pending appeal on 21 May 2026.Status: Kalshi's appeal (9th Cir. No. 26-3106) was stayed on 23 Sep 2026 until the mandates in the Nevada appeals issue	Washington	Kalshi	courtlistener.com ↗
24 Apr 2026	Multistate amicus brief (Mass. SJC, Commonwealth v. KalshiEX LLC, SJC-13906) · Attorneys General of Nevada, Ohio, 35 other states and D.C.Attorneys general of 26 states in our records signed the amicus brief supporting Massachusetts in Kalshi’s appeal of the preliminary injunction against its sports contracts.Status: Brief filed; no SJC decision found as of 4 Oct 2026	26 states Alabama, Alaska, Arkansas, Colorado, Delaware, Hawaii, Idaho, Iowa, Kansas, Louisiana, Maine, Minnesota, Mississippi, Nebraska, New Mexico, North Carolina, Oklahoma, Oregon, Rhode Island, South Carolina, South Dakota, Utah, Vermont, Virginia, Washington, D.C., Wisconsin	Kalshi	es.ag.ny.gov ↗
24 Apr 2026	Appellate ruling · U.S. Court of Appeals for the Sixth Circuit (motions panel), No. 26-3196Denied Kalshi's emergency motion for an injunction pending appeal and expedited the appeal.Status: Superseded by the 25 Sep 2026 merits decision.	Ohio	Kalshi	opn.ca6.uscourts.gov ↗
24 Apr 2026	Lawsuit (federal government v. state) · United States & CFTC, federal suit v. New York officials (S.D.N.Y. 1:26-cv-03404, Judge Schofield)The US and CFTC sued Governor Hochul, AG James and NYSGC commissioners over state enforcement against event contracts on DCMs. The PI motion was argued together with OG's (hearing set for 14 Sep 2026).Status: PI motion pending; supplemental filings on the CFTC's October rules through 23 Oct 2026	New York	Crypto.com Prediction Markets, Kalshi	courtlistener.com ↗
23 Apr 2026	Lawsuit · Wisconsin Department of Justice (AG Josh Kaul)Three suits in Dane County Circuit Court (Kalshi with Coinbase and another broker; Polymarket; Crypto.com) allege that offering sports event contracts to Wisconsin customers violates the commercial-gambling ban in Wis. Stat. § 945.03(1m) and is a public nuisance, and seek injunctions.Status: Removed to W.D. Wis. on 24 Apr 2026; the state's remand motions and its PI motion against Kalshi and its co-defendants were fully briefed by 7 Aug 2026, with no ruling on the docket. Polymarket's Blockratize was dropped on 10 Jun 2026; QCX (Polymarket US) remains	Wisconsin	Crypto.com Prediction Markets, Kalshi, Polymarket US	wisdoj.gov ↗
14 Apr 2026	Final order · Kentucky General Assembly (HB 757, veto override)Legislature enacted a 14.25% excise tax on prediction-market operators' transaction fees. This is a statute, not a court or regulator order; the CFTC says it sweeps in non-sports contracts too.Status: Enacted; takes effect 1 Jan 2027; challenged by the CFTC and the Coalition for Fair Markets.	Kentucky	Crypto.com Prediction Markets, Kalshi, Polymarket US	cftc.gov ↗
12 Apr 2026	Lawsuit (platform v. state) · KalshiEX LLC (federal suit v. AG Knudsen et al., D. Mont. 6:26-cv-00028)Kalshi sued the Attorney General, the Gambling Control Division and members of the Lottery and Sports Wagering Commission, seeking declaratory and injunctive relief against enforcement of Montana gambling law.Status: Dismissed on 21 Sep 2026 under the joint stipulation	Montana	Kalshi	courtlistener.com ↗
6 Apr 2026	Appellate ruling · U.S. Court of Appeals for the Third Circuit (KalshiEX v. Flaherty, No. 25-1922)Divided panel (Porter, Chagares; Roth dissenting) affirmed Kalshi's preliminary injunction, holding the CEA likely preempts NJ law as applied to sports contracts on a CFTC-designated contract market.Status: Stands; NJ has petitioned the Supreme Court.	New Jersey, Pennsylvania	Kalshi	www2.ca3.uscourts.gov ↗
6 Apr 2026	Cease-and-desist · Gambling Control Division, Montana Department of JusticeA second order to cease and desist said the GCD had agreed to refrain from enforcement while a Nevada federal preliminary injunction for Kalshi stood; with that injunction dissolved, the GCD again called Kalshi’s Montana activities illegal gambling.Status: Kalshi sued on 12 Apr 2026; enforcement paused under the 17 Sep 2026 stipulation	Montana	Kalshi	storage.courtlistener.com ↗
2 Apr 2026	Lawsuit · U.S. CFTC / United States (plaintiff) v. State of Illinois et al., N.D. Ill. No. 1:26-cv-03659 (Judge Pacold)CFTC sued Illinois, the Governor, the AG and IGB officials, alleging the IGB C&Ds are preempted. It moved for a PI on 17 Jun 2026. On 14 Jul 2026 the Coalition for Fair Markets' motion to intervene was granted; NADEX d/b/a OG (Crypto.com) also moved to intervene, unopposed.Status: PI granted (opinion 2 Oct 2026, injunction entered 30 Oct); Illinois appealed (7th Cir. No. 26-3266, consolidated)	Illinois	Crypto.com Prediction Markets, Kalshi, Polymarket US	cftc.gov ↗
2 Apr 2026	Lawsuit (federal government v. state) · United States & CFTC, federal suit v. State of Connecticut (D. Conn. 3:26-cv-00498)The US and CFTC sued Connecticut over enforcement against DCMs, naming Kalshi and NADEX/Crypto.com in the complaint. A PI motion was filed on 11 Sep 2026, with responses due 2 Oct 2026.Status: PI motion fully briefed (29 Oct 2026), as is the state's motion to dismiss; no ruling	Connecticut	Crypto.com Prediction Markets, Kalshi	storage.courtlistener.com ↗
27 Mar 2026	Lawsuit · Washington Attorney General (Nick Brown)The AG sued Kalshi under the Gambling Act and the Consumer Protection Act in King County Superior Court.Status: Pending; PI in effect	Washington	Kalshi	atg.wa.gov ↗
20 Mar 2026	TRO · First Judicial District Court of NevadaThe state court granted NGCB a TRO against Kalshi covering sports, election and entertainment event contracts.Status: Superseded by the PI	Nevada	Kalshi	gaming.nv.gov ↗
17 Mar 2026	Criminal charges · Arizona Attorney General (Kris Mayes)A 20-count criminal information in Maricopa County Superior Court charged KalshiEx LLC and Kalshi Trading LLC with an unlicensed wagering business and election wagering.Status: Prosecution enjoined by the federal PI of 5 May 2026; the AG is seeking to lift it	Arizona	Kalshi	azag.gov ↗
12 Mar 2026	Preliminary injunction denied · KalshiEX LLC, federal suit v. ADG Director Johnson and AG Mayes (D. Ariz. 2:26-cv-01715)Kalshi's own TRO and PI motions were denied on 8 Apr 2026. Kalshi appealed (9th Cir. No. 26-2978); the appeal was stayed on 4 Jun 2026 pending the Nevada mandates.Status: Appeal stayed	Arizona	Kalshi	courtlistener.com ↗
11 Mar 2026	Lawsuit · KalshiEX LLC (U.S. District Court, S.D. Iowa)Kalshi sued AG Brenna Bird, the Iowa Racing and Gaming Commission and its members, asking the court to declare that federal law preempts Iowa's gambling laws (Iowa Code chapters 99–99G and 725) as applied to its event contracts. The suit followed a 4 Mar 2026 meeting with the AG's office.Status: PI denied on 8 Sep 2026; appeal pending (8th Cir. No. 26-2874)	Iowa	Kalshi	storage.courtlistener.com ↗
10 Mar 2026	Multistate amicus brief (Ninth Circuit, Nos. 25-7187, 25-7516, 25-7831) · Attorneys General of Ohio, New Jersey, 37 other states and D.C.Attorneys general of 29 states in our records signed the multistate amicus brief supporting Nevada regulators against Crypto.com (CDNA) and Kalshi, arguing the CEA does not preempt state sports-betting law.Status: Ninth Circuit ruled for Nevada in KalshiEx v. Assad on 2026-08-28	29 states Alabama, Alaska, Arkansas, California, Colorado, Delaware, Hawaii, Idaho, Indiana, Iowa, Kansas, Louisiana, Maine, Minnesota, Mississippi, Nebraska, New Mexico, North Carolina, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Utah, Virginia, Washington, D.C., Wisconsin, Wyoming	Crypto.com Prediction Markets, Kalshi	ag.idaho.gov ↗
9 Mar 2026	Preliminary injunction · U.S. District Court, S.D. Ohio (Judge Morrison)Court DENIED Kalshi's preliminary injunction, finding it had not shown its sports contracts are swaps or that Ohio gambling law is preempted. The date comes from the NJ cert petition's citation, 2026 WL 657004.Status: Affirmed by the Sixth Circuit on 25 Sep 2026.	Ohio	Kalshi	opn.ca6.uscourts.gov ↗
5 Mar 2026	Lawsuit · Michigan Attorney General (Dana Nessel)The AG sued Kalshi in Ingham County Circuit Court (No. 26-1087-CZ) under the Lawful Sports Betting Act. Kalshi removed the case; W.D. Mich. remanded it on 25 Jun 2026.Status: Pending; PI in effect. Kalshi's appeal of the remand (6th Cir. No. 26-1639) is in abeyance	Michigan	Kalshi	michigan.gov ↗
23 Feb 2026	Lawsuit · KalshiEX LLC (U.S. District Court, D. Utah, No. 2:26-cv-00151)Kalshi sued Governor Cox, Attorney General Brown and three other state officials, seeking a declaration that federal law preempts Utah's gambling laws as applied to its exchange. The court's opinion notes Governor Cox's February 2026 posts calling prediction markets gambling and promising to fight in court.Status: Judgment for the state on 4 Aug 2026; on appeal (10th Cir. No. 26-4100), with Kalshi's reply due 12 Nov 2026	Utah	Kalshi	courtlistener.com ↗
19 Feb 2026	Preliminary injunction · U.S. District Court, M.D. Tenn. (Judge Trauger)Court granted Kalshi a PI against the state officials (holding its sports contracts are swaps and state law is conflict-preempted), and dismissed the TSWC itself on sovereign-immunity grounds.Status: VACATED by the Sixth Circuit on 25 Sep 2026.	Tennessee	Kalshi	courtlistener.com ↗
17 Feb 2026	Stay of preliminary injunction · Massachusetts Appeals Court (single justice)A single justice stayed the Suffolk PI pending Kalshi's appeal. This comes from a court filing signed by the AG and Polymarket US; the appellate docket (2026-J-0143) was blocked by a bot check. The appeal is SJC-13906.Status: As of 4 Mar 2026 the PI was stayed; SJC-13906 was still undecided on 6 Nov 2026	Massachusetts	Kalshi	storage.courtlistener.com ↗
17 Feb 2026	Lawsuit · Nevada Gaming Control BoardNGCB filed a civil enforcement action against Kalshi in Nevada state court. Kalshi removed it; D. Nev. remanded it on 2 Mar 2026.Status: Pending in state court; Kalshi's appeal of the remand (9th Cir. No. 26-1304) is pending, its opening brief deadline extended on 22 Sep 2026	Nevada	Kalshi	courtlistener.com ↗
20 Jan 2026	Preliminary injunction · Suffolk Superior CourtThe court granted the AG's PI and denied Kalshi's motion to dismiss; the PI was entered on 6 Feb 2026.Status: Stayed on 17 Feb 2026 by an Appeals Court single justice (see next entry)	Massachusetts	Kalshi	mass.gov ↗
9 Jan 2026	TRO · KalshiEX LLC (plaintiff) v. Orgel et al., M.D. Tenn. No. 3:26-cv-00034; TRO by Judge TraugerKalshi sued the TSWC chair, its executive director and AG Skrmetti; the court entered a TRO the same day.Status: Superseded by the 19 Feb 2026 PI, which was itself vacated on 25 Sep 2026.	Tennessee	Kalshi	opn.ca6.uscourts.gov ↗
2 Dec 2025	Cease-and-desist · Connecticut Department of Consumer ProtectionDCP emailed Kalshi a cease-and-desist letter over sports contracts (as recited in the D. Conn. PI decision).Status: Kalshi sued on 3 Dec 2025; by stipulation of 8 Dec 2025 the state held off enforcement until the PI ruling	Connecticut	Kalshi	storage.courtlistener.com ↗
25 Nov 2025	Preliminary injunction dissolved / denied · US District Court, D. Nev. (Kalshi’s federal case)The federal court dissolved Kalshi's preliminary injunction.Status: The Ninth Circuit affirmed on 28 Aug 2026	Nevada	Kalshi	gaming.nv.gov ↗
24 Oct 2025	Cease-and-desist · New York State Gaming CommissionNYSGC ordered Kalshi to stop operating an unlicensed mobile sports wagering platform in New York (as recited in the SDNY opinion).Status: Kalshi sued on 27 Oct 2025; its PI was denied	New York	Kalshi	storage.courtlistener.com ↗
23 Oct 2025	Attorney general opinion · Arkansas Attorney General Tim Griffin (Opinion No. 2025-073, requested by State Sen. Bryan B. King)The AG concluded that a business model like Kalshi’s, as described in the request, constitutes gambling or gaming and requires licensure in Arkansas, and that sports event contracts are not taxed as paid fantasy sports games.Status: Issued (published 24 Oct 2025); no enforcement action against a platform found as of 4 Oct 2026	Arkansas	Kalshi	opinionstorage.blob.core.windows.net ↗
7 Oct 2025	Lawsuit · KalshiEX LLC (plaintiff) v. Schuler et al., S.D. Ohio No. 2:25-cv-01165Kalshi sued the OCCC, its commissioners, its executive director and the Ohio AG, arguing federal preemption, and moved for a preliminary injunction.Status: Stayed in the district court until the Sixth Circuit's mandate issues; the 25 Sep 2026 judgment was docketed on 28 Sep	Ohio	Kalshi	courtlistener.com ↗
12 Sept 2025	Lawsuit · Massachusetts Attorney General (Andrea Joy Campbell)The AG filed a civil enforcement action against Kalshi in Suffolk Superior Court over sports event contracts.Status: Pending; PI appeal before the SJC (SJC-13906), argued 4 May 2026 and undecided as of 9 Nov	Massachusetts	Kalshi	storage.courtlistener.com ↗
19 Aug 2025	Cease-and-desist · Ohio Casino Control CommissionOCCC warned its licensed sportsbooks that partnering with companies offering unlicensed sports gaming in Ohio could lead to administrative action against their licences. The year is inferred from the case chronology.Status: In effect (no court has blocked it).	Ohio	Kalshi	opn.ca6.uscourts.gov ↗
1 Aug 2025	Preliminary injunction · U.S. District Court, D. Md. (Judge Abelson)DENIED Kalshi's PI: Kalshi failed to show the CEA preempts Maryland's gaming laws.Status: On appeal to the Fourth Circuit.	Maryland	Kalshi	www2.mdd.uscourts.gov ↗
7 May 2025	Appeal dismissed · U.S. Court of Appeals, D.C. Circuit (KalshiEX LLC v. CFTC, No. 24-5205)The court granted the CFTC’s unopposed motion to dismiss its appeal of the ruling that let Kalshi list congressional-control contracts, and issued the mandate. A federal case against the CFTC, not a District action.Status: Closed; the district court ruling for Kalshi stands	Washington, D.C.	Kalshi	courtlistener.com ↗
28 Apr 2025	Preliminary injunction · U.S. District Court, D.N.J. (Judge Kiel)Court granted Kalshi's motion and barred NJ from civil or criminal enforcement against Kalshi's sports-related event contracts.Status: In force; affirmed by the Third Circuit on 6 Apr 2026.	New Jersey	Kalshi	courtlistener.com ↗
21 Apr 2025	Lawsuit · KalshiEX LLC (plaintiff) v. Martin et al., D. Md. No. 1:25-cv-01283Kalshi sued Maryland gaming officials seeking a preemption declaration and a TRO/PI. The parties stipulated that the state would not enforce until the PI motion was decided.Status: District case continues; PI denied (see 2025-08-01).	Maryland	Kalshi	www2.mdd.uscourts.gov ↗
7 Apr 2025	Cease-and-desist · Maryland Lottery and Gaming Control CommissionMLGCC directed Kalshi to stop offering sports event contracts in Maryland, saying sports wagering is legal only through state-licensed operators.Status: Enforceable (Kalshi's PI was denied); per the D. Md. record the state agreed not to enforce while the PI motion was pending.	Maryland	Kalshi	www2.mdd.uscourts.gov ↗
1 Apr 2025	Cease-and-desist · Illinois Gaming BoardIGB accused Kalshi of unlicensed sports wagering and illegal gambling under the Sports Wagering Act and Criminal Code.Status: Enforcement against Kalshi and Coinbase preliminarily enjoined on 30 Oct 2026; Illinois has appealed	Illinois	Crypto.com Prediction Markets, Kalshi	cftc.gov ↗
28 Mar 2025	Lawsuit · KalshiEX LLC (plaintiff) v. Flaherty et al., D.N.J. No. 1:25-cv-02152Kalshi sued NJ gaming officials the day after the C&D, seeking a declaration that the Commodity Exchange Act preempts NJ gambling law for its sports contracts.Status: Pending in district court; parties filed a joint status report 16 Jun 2026 after the Third Circuit ruling.	New Jersey	Kalshi	courtlistener.com ↗
27 Mar 2025	Cease-and-desist · New Jersey Division of Gaming EnforcementDGE ordered Kalshi to stop offering sports wagers to people in New Jersey and to void existing ones, citing the Sports Wagering Act and the state constitution's ban on bets on NJ college teams/events in NJ.Status: Superseded: enforcement enjoined since 28 Apr 2025.	New Jersey	Kalshi	njoag.gov ↗
26 Mar 2025	Cease-and-desist · Gambling Control Division, Montana Department of JusticeAfter an investigation, the GCD concluded Kalshi’s Montana activities are illegal gambling, citing MCA §§ 23-5-112, -152, -154 and -157, and ordered it to cease and desist.Status: Enforcement was later held off while Kalshi’s Nevada injunction stood; reissued on 6 Apr 2026	Montana	Kalshi	storage.courtlistener.com ↗
4 Mar 2025	Cease-and-desist · Nevada Gaming Control BoardNGCB sent Kalshi a cease-and-desist letter; Kalshi sued in federal court on 28 Mar 2025 and won a PI on 9 Apr 2025, which was later dissolved.Status: Superseded by the state-court enforcement action	Nevada	Kalshi	gaming.nv.gov ↗
2 Oct 2024	Stay pending appeal denied · U.S. Court of Appeals, D.C. Circuit (KalshiEX LLC v. CFTC, No. 24-5205)The court denied the CFTC’s emergency motion to stay the district court ruling, finding the CFTC had not shown that it or the public would be irreparably injured, and dissolved the administrative stay.Status: The CFTC dropped the appeal on 7 May 2025	Washington, D.C.	Kalshi	media.cadc.uscourts.gov ↗
6 Sept 2024	Summary judgment · U.S. District Court, D.D.C. (Judge Jia M. Cobb), KalshiEX LLC v. CFTC (1:23-cv-03257)The court granted Kalshi summary judgment and vacated the CFTC’s 22 Sep 2023 order barring its congressional-control contracts, holding the order exceeded the CFTC’s statutory authority (memorandum opinion 12 Sep 2024).Status: Final; the CFTC’s appeal was dismissed on 7 May 2025	Washington, D.C.	Kalshi	govinfo.gov ↗

Frequently asked questions

Which states have sued Kalshi?: 14 states have sued or charged Kalshi in our records: Arizona, Arkansas, Connecticut, Kentucky, Massachusetts, Michigan, Nevada, New Jersey, New Mexico, New York, Rhode Island, Utah, Washington and Wisconsin. Kalshi has in turn sued officials in 10 cases, and the CFTC has sued several states on its side.
Has Kalshi been criminally charged?: Yes, in 2 states: Utah (28 October 2026) and Arizona (17 March 2026). Each case is listed below with its source; charges are allegations until a court decides them.
Is Kalshi’s fight going to the Supreme Court?: New Jersey has asked it to. Procedural order extending Kalshi's time to respond to NJ's petition (not a merits ruling). Status: Extended again on 30 Oct 2026; response now due 7 Dec 2026.
Is Kalshi still legal?: Kalshi is a CFTC-designated exchange, legal under federal law. Whether states can stop its sports contracts is what these cases decide, and courts have split. Where it is open today is on each state’s page.