Coinbase has suffered a legal setback in Michigan after a federal judge refused to temporarily block state officials from enforcing sports betting laws against the company’s prediction market contracts.
U.S. District Judge Shalina Kumar denied Coinbase Financial Markets’ request for preliminary relief on Aug. 6, leaving Michigan free to continue enforcing its sports betting rules while the broader lawsuit moves forward.
The ruling does not end Coinbase’s case. However, it represents another important development in the growing legal fight over whether federally regulated prediction markets should fall under exclusive federal oversight or remain subject to state gambling laws.
Michigan Judge Rejects Coinbase’s Injunction Request
Coinbase Financial Markets sued Michigan Attorney General Dana Nessel as part of its effort to prevent state authorities from restricting sports-related event contracts.
The company argued that the contracts are governed by the federal Commodity Exchange Act and regulated by the Commodity Futures Trading Commission.
According to Coinbase, that federal framework should prevent individual states from applying their own gambling and sports betting restrictions to the same products.
Judge Kumar was not persuaded that Coinbase had shown a strong enough likelihood of succeeding on that argument to justify a preliminary injunction.
As a result, Michigan’s existing enforcement authority remains in place for now.
Coinbase Wanted to Offer Kalshi Sports Contracts
Coinbase’s prediction market offering is connected to contracts supplied through Kalshi, a federally regulated prediction market platform.
These event contracts allow users to trade on the outcome of real-world events.
Sports contracts have become one of the most controversial categories because they closely resemble traditional sports betting while being structured as financial event contracts.
Coinbase argues that once these products are listed through a federally regulated derivatives framework, individual states should not be allowed to treat them as ordinary sports wagers.
Michigan disagrees.
That disagreement is now at the center of a wider national jurisdiction battle.
Judge Says Coinbase Has Not Proven Federal Preemption
Coinbase’s main argument relies on federal preemption.
Federal preemption applies when federal law overrides or prevents conflicting state regulation.
Coinbase argued that the Commodity Exchange Act gives the CFTC exclusive authority over qualifying event contracts.
If the contracts are legally classified as swaps or other federally regulated derivatives, Coinbase says states should not be able to regulate them separately as gambling products.
Judge Kumar concluded that Coinbase had not yet demonstrated that sports event contracts necessarily qualify as swaps under federal commodities law.
That weakened the company’s request for immediate court protection.
Court Rejects Coinbase’s Compliance Conflict Argument
Coinbase also argued that complying with both federal derivatives law and Michigan’s Lawful Sports Betting Act would be impossible.
The court rejected that argument as well.
Judge Kumar said additional costs or operational difficulties do not automatically create a legal impossibility.
The ruling means Coinbase did not establish that federal and state rules are so directly incompatible that Michigan’s law must be blocked at this stage.
Importantly, this was a ruling on preliminary relief.
It was not a final decision on all of Coinbase’s claims.
Coinbase Can Continue Its Lawsuit
The denial of an injunction does not end the underlying case.
Coinbase can continue challenging Michigan’s authority as the lawsuit proceeds.
The company may also seek appellate review of the preliminary injunction ruling.
For now, however, Michigan officials are not prevented from enforcing state sports betting laws against the disputed contracts.
That gives the state an important procedural victory while leaving the larger legal questions unresolved.
Coinbase Says State Rules Undermine Federal Markets
Coinbase has consistently argued that state-by-state regulation could undermine the federal derivatives framework.
Chief Legal Officer Paul Grewal has previously criticized state efforts to regulate prediction markets, arguing that they restrict innovation and conflict with federal law.
That remains Coinbase’s legal position.
The Michigan court has not accepted that argument as established law.
The distinction matters because the national prediction market debate is still being shaped by different judges reaching different conclusions.
Federal Courts Are Split Over Sports Event Contracts
The Michigan decision is part of a growing divide among U.S. courts.
Some judges have been more receptive to the argument that federally regulated prediction markets can override state gambling restrictions.
Others have concluded that states may continue regulating sports-related contracts under their existing gaming laws.
This means the legal status of sports prediction markets remains unsettled.
The outcome can currently depend on where a case is filed and which court reviews it.
Kalshi Won Preliminary Relief in New Jersey
A major contrasting decision came from the Third Circuit in a case involving Kalshi and New Jersey.
In April, the appeals court upheld preliminary relief for Kalshi.
The court found that Kalshi had shown a reasonable chance of succeeding on its argument that sports event contracts can qualify as swaps and that federal derivatives law may preempt conflicting state restrictions.
That ruling strengthened the industry’s federal preemption argument.
Michigan’s ruling points in the opposite direction.
The difference between the two decisions could eventually become important for higher courts.
Other Courts Have Questioned the Federal Theory
Not every court has agreed with Kalshi’s position.
Judges in Michigan and other jurisdictions have questioned whether Congress intended the Commodity Exchange Act to cover products that function much like sports wagering.
Earlier decisions in states including Ohio have also limited or rejected parts of the industry’s federal preemption argument.
This creates legal uncertainty for platforms attempting to operate nationally.
A contract may be available in one state while facing enforcement in another.
That outcome is exactly what Coinbase says the federal commodities framework was designed to avoid.
Gary Gensler Previously Questioned Sports Prediction Contracts
Former SEC and CFTC Chair Gary Gensler has also argued that sports prediction contracts should not automatically be treated as swaps under the federal commodities framework.
That position supports the view that sports wagering may remain within the traditional authority of state regulators.
Gaming industry groups have made similar arguments.
They have urged lawmakers to preserve state control over sports betting and prevent federally regulated prediction platforms from bypassing licensing rules that apply to sportsbooks.
This has turned the dispute into more than a technical derivatives question.
It is also a fight over who controls sports betting regulation in the United States.
Gaming Industry Wants States to Keep Control
Traditional gaming operators have spent years complying with state-level sports betting laws.
These laws can include:
- Licensing requirements
- Consumer protection standards
- Tax obligations
- Advertising restrictions
- Responsible gambling rules
- Age verification
- Location controls
Gaming groups argue that prediction market platforms should not be allowed to offer similar products without following the same state requirements.
Prediction market companies respond that their contracts are financial instruments, not conventional gambling products.
The courts have not yet reached a uniform answer.
CFTC Takes a Strong Federal Position
The CFTC has taken a more aggressive position in favor of federal jurisdiction.
Chairman Michael Selig has repeatedly argued that the agency has exclusive authority over federally regulated prediction markets.
The commission has also become directly involved in state disputes.
In June, the CFTC sued Kentucky after state authorities pursued enforcement involving designated contract markets.
The agency has also taken action related to disputes involving Minnesota, Illinois and Rhode Island.
These moves show that the CFTC views the issue as a broader jurisdictional conflict rather than a series of isolated state cases.
CFTC Is Rewriting Event Contract Rules
The regulator is also working on new rules for event contracts.
A proposal introduced in June would create a structured review process for determining whether certain contracts involve prohibited or sensitive subjects.
These categories can include:
- Gaming
- Terrorism
- Assassination
- War
- Conduct illegal under federal or state law
- Contracts considered contrary to the public interest
The proposed framework includes a 90-day review period.
The goal is to provide a clearer federal process for deciding which event contracts can legally trade.
Federal Rulemaking May Not Settle Everything
The CFTC’s rulemaking could provide more clarity, but it may not completely resolve the dispute.
Courts are interpreting the Commodity Exchange Act itself.
An agency rule cannot necessarily eliminate deeper questions about what Congress intended the statute to cover.
If judges continue reaching conflicting interpretations, appellate courts may eventually need to provide broader guidance.
The Supreme Court could also become involved if the legal split becomes significant enough.
Coinbase Faces a State-by-State Problem
The Michigan case has important implications for Coinbase’s national strategy.
Coinbase Financial Markets has been expanding beyond cryptocurrency trading into products including derivatives, event contracts and other financial markets.
If states are allowed to regulate sports event contracts independently, Coinbase may face different product rules across the country.
A contract available to users in New Jersey could potentially be restricted in Michigan.
Other states might adopt their own approaches.
That would make it harder for Coinbase to operate a single national prediction market product.
Federal Preemption Would Simplify National Expansion
Coinbase’s preferred outcome is a clear ruling that federally regulated prediction markets are controlled exclusively by federal commodities law.
Such a decision would give platforms a more uniform regulatory framework.
Instead of negotiating with dozens of state gaming authorities, companies could operate primarily through CFTC oversight.
That would simplify national expansion.
However, states would lose some control over products that they argue are effectively sports betting.
That is why the issue has become so politically and legally contentious.
Sports Markets Blur the Line Between Trading and Betting
Prediction markets sit in an unusual area between financial trading and gambling.
A contract asking whether the Federal Reserve will cut interest rates can look like a financial risk-management instrument.
A contract asking whether a football team will win a game can look much closer to a sportsbook wager.
Yet both can technically be structured as event contracts using the same trading infrastructure.
Courts and regulators must therefore determine whether the legal classification should depend on the structure of the contract, the underlying event, or both.
That question has not been definitively answered.
Michigan Keeps Its Authority for Now
The immediate effect of Judge Kumar’s ruling is straightforward.
Michigan can continue applying its sports betting laws while Coinbase’s lawsuit proceeds.
Coinbase does not receive the temporary legal protection it requested.
The company will need to either continue litigating in the district court or challenge the injunction ruling through an appeal.
Michigan, meanwhile, can continue arguing that sports-related contracts fall within its traditional gambling authority.
An Appeal Could Be the Next Major Step
Coinbase may seek appellate review.
An appeals court ruling could be especially important because of the existing Third Circuit decision favoring Kalshi in New Jersey.
If another federal appeals court reaches the opposite conclusion, the country would face a clearer circuit split.
Circuit splits are significant because they mean federal law is being interpreted differently in different parts of the country.
That can increase pressure on the Supreme Court to resolve the disagreement.
Supreme Court Review Could Eventually Become Possible
Coinbase argues that inconsistent appellate rulings would strengthen the case for eventual Supreme Court involvement.
That does not mean the Supreme Court will necessarily hear the issue.
The court accepts only a small portion of the cases presented to it.
However, a major disagreement among federal appeals courts over the scope of federal commodities law could make the dispute more likely to receive high-level judicial attention.
For prediction markets, such a ruling could shape the industry for years.
CFTC and States Are Fighting Over the Same Territory
The broader conflict can be reduced to a simple question:
Who gets to regulate sports prediction markets?
The CFTC says federally regulated event contracts belong within its derivatives framework.
States argue that sports betting has traditionally fallen under state gaming laws.
Prediction market companies generally support the federal interpretation because it provides a more consistent national system.
Traditional gaming groups support state authority because sportsbooks already operate under those rules.
The courts are now being asked to decide where the boundary lies.
The Outcome Could Affect More Than Coinbase
The Michigan ruling matters to the entire prediction market industry.
Platforms including Kalshi and other event-contract providers are also facing legal and regulatory disputes.
A final legal framework could determine:
- Which sports contracts can be offered
- Whether state gaming licences are required
- Whether the CFTC has exclusive authority
- Which consumer protection rules apply
- How prediction markets expand nationally
The answer could significantly reshape the U.S. sports betting and prediction market industries.
What Happens Next
Several developments will be important to watch.
Coinbase may appeal the preliminary injunction ruling.
The Michigan district court will also continue considering the underlying lawsuit.
Other federal courts are expected to rule on similar prediction market disputes.
At the same time, the CFTC will continue developing its event contract rules.
Together, these court cases and regulatory proposals will determine whether sports prediction markets become primarily federally regulated financial products or remain partly controlled by state gambling authorities.
Michigan Win Does Not Settle the National Fight
Michigan has won an important procedural victory, but the national battle over prediction markets is far from over.
Judge Kumar’s ruling means Coinbase failed to show, at this stage, that its federal preemption argument was strong enough to justify blocking state enforcement.
It does not establish a final rule for every sports event contract or every state.
With the Third Circuit previously giving Kalshi a more favorable ruling and other courts taking different positions, the legal landscape remains fragmented.
For Coinbase, Kalshi, gaming regulators and the CFTC, the next phase will likely involve appeals, additional court rulings and federal rulemaking.
Until those questions are resolved, sports prediction markets will continue operating in one of the most uncertain areas of U.S. financial and gambling law.
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Disclaimer:
This article is for informational purposes only and does not constitute legal, financial or investment advice. The Michigan ruling concerns preliminary relief and does not represent a final judgment on all claims in the case.
