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Supreme Court

Is This the Supreme Court's Next Sports Betting Case?

Plus: SCOTUS allows Trump’s White House ballroom construction to proceed.

Damon Root | 9.1.2026 10:20 AM

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A poker chip with the Kalshi logo on it | Photo: Yunkiphotoshot/Patrik Winbjork/Dreamstime. Illustration: Fatima Ruiz.
(Photo: Yunkiphotoshot/Patrik Winbjork/Dreamstime. Illustration: Fatima Ruiz.)

In Murphy v. National Collegiate Athletic Association (2018), the U.S. Supreme Court overruled a provision of federal law that had made it illegal for states to legalize sports gambling. "That provision unequivocally dictates what a state legislature may and may not do," the Court said. "It is as if federal officers were installed in state legislative chambers and were armed with the authority to stop legislators from voting on any offending proposals. A more direct affront to state sovereignty is not easy to imagine." Widespread state legalization (and regulation) of sports betting quickly followed from that decision.

Another big sports betting case is now likely headed for the Supreme Court. And once again, a duel over state vs. federal control is at its heart.

You’re reading Injustice System from Damon Root and Reason. Get more of Damon’s commentary on constitutional law and American history.

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Last week, the U.S. Court of Appeals for the 9th Circuit sided with the Nevada Gaming Control Board in a case called KalshiEX v. Assad. Here is how the 9th Circuit summarized the legal dispute:

KalshiEX, LLC advertises itself as "the first app for legal sports betting in all 50 states." As the volume of activity on Kalshi's "sports betting" platform ballooned, the Nevada Gaming Control Board sent a cease-and-desist letter notifying Kalshi that it was violating Nevada statutes and gaming regulations. Kalshi sought injunctive relief, arguing that it is not a legal sports betting platform, but a designated contract market under the Commodity Exchange Act (CEA) offering legal sports event contracts. Kalshi argues that the Commodity Futures Trading Commission (CFTC) has exclusive regulatory authority over its sports event contracts and, therefore, Nevada's gaming regulations do not apply.

To say that the 9th Circuit strongly rejected Kalshi's position would be a bit of an understatement. "The substance of the sports event contracts offered on Kalshi's [designated contract market] is sports gambling, regardless of whether Kalshi calls them swaps. Just as '[t]hat which we call a rose by any other name would smell as sweet,'" the court said, adding in a little Shakespeare for good measure, "placing sports bets, even when called by another name, is still gambling."

That ruling by the 9th Circuit comes in the wake of an April decision by the U.S. Court of Appeals for the 3rd Circuit, which reached the opposite conclusion in a very similar case called KalshiEx v. Flaherty. According to the 3rd Circuit, it is federal regulators, not the New Jersey Division of Gaming Enforcement, who are the ones to hold sway over Kalshi's "sports-related event contracts."

In short, we have what is basically a textbook example of a circuit split. This kind of clear divide between two different federal appellate courts on such a pressing legal issue seems likely to garner the attention of the Supreme Court.

In Other Legal News

The U.S. Constitution grants Congress the authority "To exercise exclusive Legislation in all Cases whatsoever" over the District of Columbia. Relying on that authority, Congress has outlawed the construction of any "building or structure…on any reservation, park, or public grounds of the Federal Government in the District of Columbia without express authority of Congress."

Yet yesterday the Supreme Court, by a vote of 5–4, allowed President Donald Trump's demolition and renovation of the White House to proceed, despite the fact that Trump's much ballyhooed ballroom has never been approved by Congress.

Why did the Court do it? According to the majority's unsigned per curiam opinion, the historic preservationists who filed the legal challenge against Trump's ballroom lacked the requisite standing needed to sue.

Writing in dissent, Chief Justice John Roberts, joined by Justices Sonia Sotomayor, Elena Kagan, and Ketanji Brown Jackson, faulted the majority not only for letting the "likely unlawful" demolition of the White House happen, but also for letting Trump get away with assuming powers that the Constitution never granted to the executive.

"The Court misconceives the plaintiff 's injury," Roberts protested, "allowing the Executive's likely infringement of the Legislature's power of the purse and authority to regulate federal property in the District of Columbia to continue."

I must say that I find Roberts' dissent to be much more persuasive than the per curiam majority opinion. Yesterday's decision, as the chief justice put it, was "no victory for the separation of powers."

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NEXT: Trouble at the Pentagon

Damon Root is a senior editor at Reason and the author of three books, including A Glorious Liberty: Frederick Douglass and the Fight for an Antislavery Constitution (Potomac Books). His latest book is Emancipation War: The Fall of Slavery and the Coming of the Thirteenth Amendment (Potomac Books).

Supreme CourtHouse of RepresentativesConstitutionFederalismbetting marketsSportsGamblingDonald TrumpCongressWhite House
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  1. Don't look at me! ( Is the war over yet?)   2 months ago

    If Congress has to approve modifications to the White House, should the president have to approve modifications to the capital building ?

    1. Eeyore   2 months ago

      "It's just a remodel"

  2. But SkyNet is a Private Company   2 months ago

    Of course Root finds the most laughable Robert’s opinion credible. Looking at something gives you standing

    1. Stupid Government Tricks   2 months ago

      For those who don't get the joke: The entire case stems from one person who claims she walks by the location once a month and the planned new ballroom will be ugly.

      Or something ridiculous like that.

      If she has standing, then everyone else who thinks anything is ugly has standing. Don't like the cherry blossom trees shedding every spring? Sue to uproot them. Don't like the way the morning sun reflects off the reflecting pool? Sue to pave it over.

      What a pathetic excuse for any complaint.

      Trump may well be violating some law, but that happened when he tore down the East Wing, not now a year later when the new construction is half done. Roberts is a damned fool.

      And Damon Root is a damned TDS fool if he thinks this dissent has any merit other than Never Trump. For one thing, the dissent is only over building the new ballroom. The military bunker underneath gets a pass because "national security". So tell me, Chief Justice Roberts and Chief TDS Whiner Root, how exactly was the permissible military bunker supposed to be built without tearing down the East Wing? And would it be more aesthetically pleasing to just build a guard shack on top instead of a ballroom? Or would they require the old East Wing be rebuilt?

      1. West Texas   2 months ago

        The only party that has any standing is Congress and Congress hasn't done anything to assert its rights. The end. Nobody else has standing here. No one. Nada. Roberts could write the most persuasive and artistic and beautiful possible and he would still be totally 100% wrong.

        In fact, the majority opinion should have just said that:

        "Nobody but Congress has standing. This lady isn't Congress. The end."

        1. JesseAz (RIP CK)   2 months ago

          Ive actually thought judges should be forced to state what class has standing when they deny for standing reasons. So agree with you there.

          But roberts standing construction here is worse than inferior courts giving standing for 3rd party NGOs to sue over immigration issues.

  3. Jesse fantasizes about having a 3some with Dave Smith and Maddow   2 months ago

    Donald Trump jr is an investor in Polymarket and an advisor to Kalshi. However, it’s just a coincidence that Republicans are reluctant to regulate prediction markets.

    1. But SkyNet is a Private Company   2 months ago

      Libertarians for Outlawing Gambling and Regulating Business to death.

      GFY troll stooge

      1. Jesse fantasizes about having a 3some with Dave Smith and Maddow   2 months ago

        Libertarians for crony capitalism and blatant corruption!

        I am against outlawing gambling.

        I simply believe prediction markets should have the same regulations as casinos and sportsbooks. Corruption is rampant on those apps.

  4. Rossami   2 months ago

    Roberts' dissent might have been persuasive if it had been consistent with his other writings on the limitations of standing. Instead, he simply assumed standing here that entirely contradicts what he's said about standing in ..., well, pretty much all his prior opinions.

    Mind you, I think many of his prior standing decisions were overly strict but to suddenly discover a different standard here comes across as motivated reasoning, not principled persuasion.

    1. BYODB   2 months ago

      Yes, which is not at all surprising from 'penaltax' Roberts.

      1. JesseAz (RIP CK)   2 months ago

        His wife has changed his into an inferior court judge.

  5. Don't look at me! ( Is the war over yet?)   2 months ago

    Is This the Supreme Court's Next Sports Betting Case?

    What’s the odds?

    1. Rick James   2 months ago

      Let me consult the prediction market.

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