Nevada’s top gaming regulator stood at an industry conference in Barcelona in January 2026, watched a five-reel slot machine driven by prediction-market outcomes spin its glowing reels, and told reporters he was “okay with that innovation.” Two months later, the same agency he chairs was back in federal court trying to ban Kalshi — the company that turned prediction markets into a mainstream business — from operating in Nevada at all. The contradiction is not an accident. Nevada does not actually oppose prediction-based betting. It opposes prediction-based betting that pays no Nevada gaming tax.

KEY FACTS AT A GLANCE
- Cease-and-desist: Nevada Gaming Control Board issued to Kalshi on March 4, 2025 — the first state regulator in the U.S. to do so
- Federal ruling: U.S. District Judge Andrew Gordon dissolved Kalshi’s protective injunction on November 25, 2025
- State TRO: Judge Jason Woodbury blocked all of Kalshi’s sports, politics, and entertainment markets in Nevada on March 20, 2026
- Federal appeal: Ninth Circuit heard arguments April 16, 2026 — the panel leaned Nevada’s way
- The contradiction: The same agency is publicly evaluating prediction-style slot machines for licensed casinos
- At stake: Roughly $200 billion in projected 2026 prediction-market trading volume
What Nevada Is Actually Trying to Ban
Kalshi and Polymarket are not sportsbooks, in the same way that a tuxedo is not a wedding dress. They are federally chartered event-contract exchanges regulated by the Commodity Futures Trading Commission. Users do not place “wagers” — they buy and sell binary yes/no contracts on whether a defined outcome will occur. When the Kansas City Chiefs win, a “Chiefs win Super Bowl” contract settles at $1. When they lose, it settles at $0. The CFTC categorizes these instruments as financial swaps. Nevada categorizes them as sportsbooks with extra steps.
The numbers favor Nevada’s reading. Sports drive roughly 90% of Kalshi’s weekly volume and about half of Polymarket’s. Once Kalshi expanded into player-prop markets — yes-or-no contracts on whether a specific player would hit a specific stat line — even the federal judge presiding over Nevada’s case said the regulatory framing strained credulity. The CFTC’s defense is that any wagering instrument satisfying the Commodity Exchange Act’s definition of a swap falls exclusively under federal jurisdiction. Nevada’s counter is simpler: if it walks like a sportsbook and parlays like a sportsbook, it is a sportsbook.
Fourteen Months of Legal Whiplash
The legal fight runs longer than the regulators initially expected. Nevada’s Gaming Control Board became the first state regulator anywhere in the country to send Kalshi a cease-and-desist letter, on March 4, 2025, with a hard deadline of 5 p.m. on March 14 to halt operations or face suit. Kalshi sued back, won an initial federal injunction protecting its sports contracts, then lost that injunction in November when Judge Andrew Gordon issued a 29-page ruling that Kalshi’s reading of the law “upsets decades of federalism regarding gaming regulation, is contrary to Congress’ intent.” Since then the procedural beats have come in clusters — most recently the March 2026 state TRO, the April 2026 preliminary injunction, and the Ninth Circuit hearing where the panel appeared to lean Nevada’s way. The chart below tracks the sequence.
Outside Nevada the picture is more divided. The Third Circuit ruled for Kalshi earlier this year on federal preemption grounds, binding Pennsylvania, New Jersey, and Delaware. Tennessee’s enforcement is blocked by federal court. Massachusetts won at the trial level. Roughly 39 states have aligned in a coalition pushing back against the CFTC’s expansive reading of its own jurisdiction — see our coverage of the 39-state coalition amicus filing for the full lineup. A Ninth Circuit decision this summer is likely to determine whether the Supreme Court takes the case before 2027. For more on the federal trajectory, see our earlier piece on the legal war heading toward the Supreme Court.
The Quote Nevada Doesn’t Want Stitched to Its Court Filings
Mike Dreitzer, chair of the Nevada Gaming Control Board, has spent the past five months giving two very different speeches about the same product. At the State Bar of Nevada’s Gaming Law Conference on December 6, 2025, he called prediction markets an “existential” threat and warned the audience that the industry was on a path to “prediction casinos.” Four months later, at the Indian Gaming Association conference in San Diego, he described prediction markets as a “workaround supported by private equity” that undermines industry safety standards. Then, in May 2026, he told CDC Gaming about a five-reel slot machine he had recently watched in Barcelona — one driven by prediction-market outcomes — and said he was “okay with that innovation, as long as you do it in accordance with laws and regulations.” The casino-floor version, in other words, gets a streamlined review path. The federally regulated version gets sued.
SAME CHAIRMAN, TWO POSTURES
DREITZER ON KALSHI & POLYMARKET
- “This is an existential issue for us”
- “We don’t want to end up with prediction casinos”
- “A workaround supported by private equity”
- “With prediction markets, it’s Nevada’s position that it’s illegal betting”
- “They come to our conferences to tell us it’s not gaming. How insulting is that?”
DREITZER ON PREDICTION-STYLE SLOTS
- “We are currently looking at a prediction-style product”
- “We’re okay with that innovation”
- “I will never discourage a licensee from bringing new technology to the state of Nevada”
- “If they have a path forward under existing regulation, let’s sit down and have a discussion”
- “We’re going to streamline it”
“We are currently looking at a prediction-style product. We’re okay with that innovation, as long as you do it in accordance with laws and regulations.”
— Mike Dreitzer, Chair, Nevada Gaming Control Board
Same person. Same agency. Same product category — wagering on whether a defined outcome will occur. Opposite postures. The only meaningful variable separating them is who collects the licensing fee and who pays the gaming tax. When the prediction-style product runs through a Las Vegas casino floor that holds a Nevada gaming license, it is innovation. When it runs through a CFTC-regulated exchange in New York, it is illegal betting.
It’s the Rake, Not the Gambling
Nevada’s gaming economy is built on the rake. Every legal wager placed inside the state’s regulatory perimeter feeds a chain of license fees, gaming taxes, table-share revenue, and employment that, in aggregate, finances a measurable portion of the state’s general fund. Sportsbooks pay a state tax on every dollar booked. Slot operators pay a tax on every dollar dropped. The product mix changes; the rake doesn’t.
Kalshi and Polymarket operate across that perimeter rather than inside it. Their users are Nevada residents. Their outcomes settle on Nevada-relevant events — the Vegas Golden Knights win-totals market, the next NFL Draft pick, the Oscars. But the contracts themselves clear on a federal exchange that owes Nevada nothing. The American Gaming Association estimates prediction markets have diverted more than $480 million in state tax revenue nationwide since early 2025. Kalshi has climbed to seventh place in U.S. sports betting revenue, ahead of every regional sportsbook that pays full state taxes. The competitive dynamics are captured in our piece on the power shift from traditional sportsbooks to prediction markets.
If a Nevada-licensed casino can build a prediction-style slot machine and put it on the floor of Caesars Palace, every spin generates a regulated rake. Same wagering activity, same prediction-market mechanism, different destination for the money. That is the actual policy the Gaming Control Board is defending. The legal argument about federalism, swap definitions, and the Commodity Exchange Act is the wrapping paper.
These Are Sportsbooks in Everything but Name
The CFTC’s defense rests on a tidy theoretical claim — these are financial instruments, not bets. The trading data is less tidy. Kalshi’s $871 million single-day Super Bowl LX volume was roughly double FanDuel’s and DraftKings’ same-day numbers, and the company’s entire growth story over the past 12 months is sports. Player-prop markets specifically — yes-no contracts on whether a given player exceeds a given stat line — are the products that triggered Judge Gordon’s ruling that Kalshi had drifted past anything Congress envisioned under the Commodity Exchange Act.
Beneath the headline numbers, the platform-level mix is the more damning evidence. Polymarket, the Polygon-based competitor that pioneered the political-prediction format, sits at roughly 50% sports. Kalshi sits at roughly 90%. Conventional sportsbooks like FanDuel and DraftKings sit at essentially 100% sports by design. The distance between Kalshi and a sportsbook is one rounding error and a regulatory letterhead.
Why the Casino Industry Is Winning Anyway
The American Gaming Association — the casino industry’s Washington-based trade group — has spent the past year running an unusually open political offensive. At an Economic Club of Las Vegas event on May 6, 2026, AGA CEO Bill Miller called CFTC Chair Michael Selig “quite frankly, a joke,” accusing him of pivoting from a Senate-confirmation promise of neutrality to a public role as, in Miller’s words, “a cheerleader for the prediction market industry.” Miller’s broader argument is that a federal agency with one active enforcement division and a 50-year track record of letting market participants self-certify their own products is not equipped to police a national sports-wagering market.
The CFTC’s response has been to lean in. Chair Selig published a Wall Street Journal op-ed declaring the agency “will no longer sit idly by while overzealous state governments undermine” its jurisdiction, and followed up with a video statement promising, “to those who seek to challenge our authority in this space, let me be clear, we will see you in court.” The new CFTC Innovation Advisory Committee — 35 members including the CEOs of Kalshi, Polymarket, Coinbase, Robinhood, FanDuel, and DraftKings, and zero consumer advocates — gives the agency the policy infrastructure to push back.
CONFLICT-OF-INTEREST FLAG
Donald Trump Jr. is a strategic advisor to Kalshi and an investor in Polymarket via his venture capital firm. The President’s family stands to benefit financially from a favorable CFTC posture on prediction markets — a dynamic the casino industry has been quick to highlight in its public messaging.
Underneath the federal-versus-state framing is a pragmatic question: which industry collects the rake? The casino industry has had a century of practice extracting value from American gambling. Kalshi and Polymarket are arguing that a different industry — federally chartered derivatives exchanges — should collect a slice of that economic surplus from now on. Nevada’s prediction-style slot pivot, and the parallel licensing offers Dreitzer has dangled at multiple industry events, signal that Nevada has not given up on the format itself. It has only given up on letting someone else cash in on it.
What Happens Next
The Ninth Circuit ruling expected this summer is the most important inflection point. If the panel sides with Nevada — and the April hearing suggests it will — every state currently fighting Kalshi gets stronger legal footing, and the Supreme Court will likely take the case in the 2026–27 term given the circuit split with the Third Circuit’s pro-Kalshi ruling. For procedural background, our earlier coverage of the March Madness TRO covers the state-court side of the fight.
The more telling indicator may be the prediction-slot framework itself. If the Gaming Control Board approves the first prediction-driven slot machine for a Las Vegas casino floor before the Ninth Circuit decides — and Dreitzer’s public timeline suggests that is possible — Nevada will have publicly conceded that the format is not the problem. The problem is the licensing path. The fight, in other words, is already over. The fight that remains is just the public reckoning of who gets to call the new product their own.
KEY TAKEAWAYS
- Nevada has banned Kalshi and Polymarket from offering prediction markets to state residents via overlapping federal and state court orders.
- The same regulator is openly evaluating prediction-style slot machines for licensed Las Vegas casinos — including a five-reel product viewed at ICE Barcelona.
- Sports drive about 90% of Kalshi’s volume, undermining the CFTC’s “financial swap” framing and helping explain Judge Gordon’s November 2025 ruling.
- An estimated $480 million-plus in state tax revenue has been diverted from regulated sportsbooks to prediction markets since early 2025, by AGA estimates.
- The Ninth Circuit decision expected this summer likely determines whether the Supreme Court takes the case — but Nevada has already decided the format itself is fine, as long as the rake stays in-state.
Sources
- Federal judge rules that Kalshi must stop offering prediction contracts in Nevada — The Nevada Independent
- Nevada gaming regulators eye prediction-style products for their tech — CDC Gaming
- Nevada regulator fears prediction markets could expand into casino gaming — CDC Gaming
- IGA: Nevada regulator addresses prediction markets in deep detail — CDC Gaming
- AGA CEO Miller calls federal prediction market regulator ‘a joke’ — CDC Gaming
- Trump administration backs Kalshi and Polymarket as states move to ban prediction markets — PBS NewsHour
- Ninth Circuit panel appears to lean Nevada’s way in legal battle with Kalshi, Crypto.com — Nevada Current
- Judge continues Nevada ban on Kalshi sports markets — CoinDesk
- Nevada legal battle against prediction markets it calls ‘unlicensed sports gambling’ is moving forward — NBC News