Is Kalshi Legal in Connecticut? Still Live After Two Court Losses

Open Kalshi from a Connecticut address today and the whole platform is there: elections, economics, weather — and, per the most recent state-by-state reporting, sports event contracts too, which Kalshi has not geofenced. What changed in August is not what trades but what protects it. On August 10, the federal district court in Hartford denied Kalshi a preliminary injunction; on August 15, the same judge refused to shield it while it appeals; and On August 19 the Second Circuit denied temporary injunctive relief pending a three-judge panel and referred the remaining injunction motion to a panel, to be heard with the New York appeal; Connecticut filed its full opposition August 24. The cease-and-desist Connecticut issued in December is enforceable again, and Kalshi’s sports markets stay up only because no court has yet ordered them down — as of August 31, 2026. The state has now sued: on August 26 Connecticut filed in Hartford Superior Court seeking a temporary and permanent injunction (State of Connecticut v. KalshiEX LLC, return date September 15), and Kalshi removed the case the same day to federal court (D. Conn. No. 3:26-cv-01382). No TRO or preliminary injunction appears on that public docket.

What happened in Connecticut

Connecticut first issued orders — then got sued twice, first by Kalshi, then by the United States itself — and on August 26 it sued Kalshi in Hartford Superior Court.

• December 2, 2025. The Department of Consumer Protection’s Gaming Division issued a cease-and-desist to KalshiEX LLC (Case No. 2025-77), with parallel orders to Robinhood Derivatives and Crypto.com: stop offering sports event contracts to Connecticut residents, and let customers withdraw their funds. The announcement’s message: only licensed entities may offer sports wagering in Connecticut.
• December 3, 2025. Kalshi sued the next day — KalshiEX LLC v. Cafferelli, No. 3:25-cv-02016 (D. Conn.) — arguing the Commodity Exchange Act’s grant of exclusive CFTC jurisdiction preempts Connecticut’s gambling laws.
• December 9, 2025. Judge Vernon D. Oliver ordered the state to hold off while he weighed Kalshi’s request for temporary relief. That pause protected Kalshi for eight months.
• April 2, 2026. The United States and the CFTC jointly sued Connecticut itself — the state, Governor Ned Lamont, Attorney General William Tong, and the DCP’s gaming officials — the same day they sued Arizona and Illinois.
• August 10, 2026. Judge Oliver denied the preliminary injunction: Kalshi had not shown its sports contracts likely qualify as swaps under the CEA — and even if they did, Connecticut’s gambling laws would not be preempted. The December pause ended here.
• August 15, 2026. Judge Oliver denied an injunction pending appeal, rejecting Kalshi’s argument that the “market emergency” order the CFTC issued in the parallel New York fight compelled a different result.
• August 17–18, 2026. Kalshi asked the Second Circuit for an emergency halt to Connecticut enforcement during its appeal; the state opposed the next day and requested until August 24 for its full response.

“[N]othing in the CEA takes away statutory interpretation from the Courts, and as an administrative agency, the CFTC lacks the authority to dictate an order that conflicts with this Court’s decision,” Judge Oliver wrote on August 15.

What you can trade in Connecticut right now

• Sports event contracts — live, but unprotected, as of August 31, 2026. CBS Sports’ 50-state tracker, updated August 19, lists Kalshi’s Connecticut sports markets as live, and Kalshi’s first full geofence blocks categories only in Michigan and Nevada. With no court order restraining the state and the Second Circuit motion undecided, this could change on short notice.
• Election contracts — live, as of August 31, 2026. The cease-and-desist targets sports event contracts and unlicensed gambling; its text does not mention election markets, and we found no Connecticut action against them.
• Economics, weather, and everything else — live, as of August 31, 2026. No Connecticut order or filing in the record targets non-sports contracts.

What about Polymarket and Robinhood?

Polymarket relaunched in the US as a CFTC-regulated exchange and dropped its waitlist in May 2026, but Connecticut is not among the states it serves — the August 19 tracker lists it as unavailable there. Nor was it among the companies Connecticut ordered to stand down — on the primary record, Polymarket geoblocks Connecticut rather than fighting it. Our Polymarket review covers the relaunched exchange.

Robinhood is in the fight. Robinhood Derivatives — the registered brokerage that routes event contracts to CFTC-regulated exchanges, Kalshi’s included — received its own December 2 order on the same terms — and is the futures commission merchant referenced in the federal complaint against Connecticut. Robinhood has publicly echoed Kalshi’s preemption arguments but, as far as we can find, has not filed its own Connecticut suit — and its own restrictions page, retrieved August 20, 2026, lists no Connecticut restriction (only Maryland and Nevada), the freshest platform-published signal that its contracts remain on offer there.

Why Connecticut is fighting

The legal question is the same in every state — our 50-state tracker walks the full doctrine. The Commodity Exchange Act gives the CFTC exclusive jurisdiction over swaps on federally designated exchanges; Kalshi argues its sports contracts are swaps, so only the federal regulator can touch them. Connecticut answers that a contract paying out on a game result is a sports wager whatever the paperwork says — the gambling-or-investing question at its sharpest. Twice, the Hartford court has sided with the state on the likelihoods.

The state’s stake is concrete. Connecticut authorized sports wagering in 2021 under Public Act 21-23 through exactly three licensed online operators — DraftKings with the Mashantucket Pequot Tribal Nation, FanDuel with the Mohegan Tribe, Fanatics with the Connecticut Lottery — taxed at 18% online, worth about $2.97 million to the state on January 2026’s $237.3 million handle. Kalshi’s sports contracts sit outside that licensed, taxed, tribal-compact structure entirely.

The order also presses two Connecticut-specific consumer grounds: it says Kalshi takes wagers from residents under 21 and on Connecticut college teams, both barred by state statute — and it invokes a state law under which wagering contracts are simply void.

What could change next

Connecticut filed its full Second Circuit opposition on August 24 (No. 26-2239, Dkt. 29); Kalshi replied August 28 (Dkt. 33). The three-judge panel has not ruled. Separately, on August 26 the state sued Kalshi in Hartford Superior Court; that case is now in federal court as 3:26-cv-01382, with no stop order on the public docket. A grant of the pending injunction motion would restore Kalshi’s shield; a denial leaves the state free to act on the cease-and-desist. No merits schedule for Kalshi’s appeal had been announced as of August 31, 2026. Kalshi’s own district case (KalshiEX LLC v. Cafferelli, 3:25-cv-02016) shows an August 21 order on the parties’ joint stay motion pending the Second Circuit decision; that case is distinct from Connecticut’s new August 26 enforcement suit (now 3:26-cv-01382) and from the separate United States/CFTC suit against Connecticut. Kalshi also now runs working geofences in two states — if a court or settlement ever requires switching Connecticut off, the plumbing exists.

Frequently asked questions

Can I get in trouble for trading on Kalshi in Connecticut?

Everything Connecticut has done so far targets companies, not customers: the December orders went to KalshiEX, Robinhood Derivatives, and Crypto.com; the lawsuits run between platforms, the federal government, and state officials. We found no Connecticut action against an individual for trading. That describes the record as of August 31, 2026 — it is not a promise about the future.

Is Polymarket legal in Connecticut?

Polymarket’s relaunched US exchange does not serve Connecticut as of August 31, 2026, and the state has never ordered it to do anything — it was not among the December cease-and-desist recipients, and no Connecticut case against it appears in the record we reviewed.

Is regular sports betting legal in Connecticut?

Yes — which is the state’s whole point. Public Act 21-23 authorized sports wagering in 2021 through licensed operators only — DraftKings, FanDuel, and Fanatics online, regulated by the DCP’s Gaming Division and taxed at 18%. Connecticut’s objection is not that residents wager on sports; it is that only licensed entities may take those wagers.

What happens to money already on Kalshi if enforcement starts?

The December 2 orders required all three companies to let customers withdraw their funds even as they stopped offering sports contracts. Nothing in the Connecticut record we reviewed seeks to freeze trader balances.

Part of our 50-state legality tracker — see every state. Last verified August 31, 2026.