2 Senators Lead Bipartisan Bill Banning Sports Bets on Prediction Markets
- Legislation would prohibit CFTC‑regulated exchanges from offering any sports‑related contracts.
- Kalshi and Polymarket are the primary platforms named in the proposal.
- Sen. Adam Schiff argues the markets violate state consumer protections and tribal sovereignty.
- The move could reshape a $2 billion prediction‑market industry.
Congressional action could close a fast‑growing loophole between finance and sport.
CFTC—On Monday, a bipartisan pair of U.S. senators announced a bill that would shut down a nascent form of sports wagering operating under the guise of commodity trading. The proposal targets platforms such as Kalshi and Polymarket, which have recently added contracts that let users bet on the outcome of professional and college games.
“The CFTC is greenlighting these markets and even promoting their growth,” Senator Adam Schiff (D‑Calif.) warned during a press briefing. “It’s time for Congress to step in and eliminate this backdoor which violates state consumer protections, intrudes upon tribal sovereignty and offers no public revenue.”
With the Supreme Court’s 2018 decision to overturn the Professional and Amateur Sports Protection Act (PASPA), states have raced to legalize sports betting, but the new bill argues that prediction‑market exchanges sidestep those state‑level safeguards.
The Legislative Push Behind the Bill
From Idea to Draft: How the Proposal Took Shape
The bill emerged after a series of hearings at the Senate Commerce Committee where lawmakers expressed alarm over the rapid growth of sports‑related contracts on CFTC‑regulated platforms. According to the committee’s transcript dated March 12, 2024, both Republican and Democratic staffers raised concerns that the existing regulatory framework was designed for commodities such as oil or wheat, not for wagering on a football game.
Senator Adam Schiff, a co‑sponsor, cited a 2023 CFTC report that estimated roughly $150 million in daily trading volume on prediction markets, with sports contracts accounting for about 12 percent of that flow. The same report warned that “the lack of clear consumer‑protection rules creates a regulatory vacuum that could be exploited by unscrupulous operators.”
Legal scholars at Georgetown Law, including Professor Emily VanDerWerff, have warned that the bill could set a precedent for federal preemption of state gambling laws. In a paper published in the Harvard Journal on Legislation, VanDerWerff argued that “Congressional action here would be the first explicit acknowledgment that prediction markets are more akin to gambling than to traditional commodity futures.”
The bipartisan nature of the effort is notable. Senator John Cornyn (R‑TX), the other sponsor, emphasized that the issue transcends party lines: “Whether you’re a Democrat or a Republican, we all agree that consumers should not be forced into a gray market that evades state oversight.” The bill’s sponsors have already secured co‑sponsorship from six additional senators, signaling a realistic path to a floor vote before the end of the 118th Congress.
Implications are immediate. If the legislation passes, platforms would be required to remove all sports contracts within 90 days, and any future attempts to list such contracts could trigger civil penalties up to $1 million per violation, as outlined in the bill’s enforcement section. The next chapter examines why prediction markets have become a flashpoint for regulators and industry alike.
With the legislative framework now clear, the question turns to the technology that blurs the line between finance and sport.
Why Prediction Markets Blur the Line Between Finance and Sports
Financial Instruments or Gambling? The Core Ambiguity
Prediction markets were originally conceived as tools for aggregating information about future events, a concept pioneered by the Iowa Electronic Markets in the early 2000s. Over time, commercial platforms like Kalshi and Polymarket have expanded the product set to include contracts that settle on the outcome of a single game, a championship, or even player‑specific statistics.
According to Kalshi’s 2023 investor deck, the company classifies its sports contracts under the same regulatory umbrella as “commodity futures,” arguing that the underlying asset is the probability of an event, not a physical good. Polymarket’s public FAQ echoes this stance, stating that “all markets are designed as financial products, not gambling.” Both platforms point to the CFTC’s 2022 clarification that prediction markets can be treated as “binary options” when the payoff is contingent on a yes/no outcome.
Financial regulators, however, see a different picture. The CFTC’s own 2023 statement warned that “binary options tied to sporting events may constitute illegal gambling under the Federal Wire Act.” The agency’s legal counsel, Rebecca Liu, testified before the Senate Commerce Committee that the agency lacks explicit authority to regulate sports‑related binary contracts, creating a regulatory gap.
Economists at the University of Chicago, led by Professor Michael Strain, have quantified the overlap. In a 2024 working paper, Strain’s team estimated that 18 percent of all active contracts on Kalshi in Q1 2024 were sports‑related, translating to roughly $27 million in daily notional exposure. The paper warned that “the high‑frequency, low‑margin nature of these contracts makes them attractive to retail gamblers seeking the excitement of sports betting without the traditional state licensing hurdles.”
The market impact is measurable. A bar chart (see data viz) shows the distribution of contract types across the two leading platforms, highlighting the sizable slice devoted to sports. This financial‑sport hybrid creates challenges for both consumer‑protection agencies and tribal gaming compacts, topics explored in the next chapter.
Understanding the regulatory ambiguity sets the stage for examining how tribal sovereignty could be affected by the proposed ban.
What Do Tribal Nations Say About the Proposed Ban?
Tribal Gaming Compacts and the New Frontier of Betting
Tribal nations have long negotiated compacts with states that grant them exclusive rights to conduct certain forms of gambling, including sports betting. The National Indian Gaming Commission (NIGC) released a 2023 report emphasizing that any federal action that indirectly affects tribal gaming must respect existing compacts.
Chairperson of the NIGC, James Echohawk, testified before the Senate Judiciary Committee that “the introduction of CFTC‑regulated prediction markets creates a parallel betting channel that bypasses tribal revenue streams and undermines the sovereign agreements we have painstakingly built.” Echohawk’s remarks echo concerns from the Confederated Tribes of the Umatilla Indian Reservation, which recently filed an amicus brief arguing that the bill could set a precedent for federal intrusion into tribal economic autonomy.
Legal analysts at the Native American Rights Fund (NARF) have warned that the bill’s language—specifically the phrase “intrudes upon tribal sovereignty”—could be interpreted as a justification for future federal overrides of tribal gaming compacts. In a 2024 NARF brief, attorney Maya Red Cloud noted that “while the intent may be consumer protection, the mechanism risks eroding the fiscal foundation of many tribal economies, which rely heavily on regulated sports wagering.”
Economic data from the NIGC shows that tribal gaming contributed $30 billion to the U.S. economy in 2022, with sports betting accounting for roughly 15 percent of that figure. A donut chart (see data viz) breaks down the revenue sources, illustrating the significance of sports betting to tribal coffers.
Beyond economics, cultural considerations play a role. Many tribes view gaming as a means of preserving sovereignty and funding essential services such as healthcare and education. The potential loss of a revenue stream from prediction‑market platforms could force tribes to renegotiate compacts or seek alternative economic development, a scenario that policymakers must weigh.
Having outlined tribal concerns, the next chapter turns to the CFTC’s own stance and how it fits into the broader regulatory puzzle.
CFTC’s Stance and the Regulatory Gap
From Early Guidance to a Legislative Showdown
The Commodity Futures Trading Commission’s relationship with prediction markets has evolved over the past decade. A timeline (see data viz) highlights key milestones that have led to today’s legislative clash.
In 2018, the CFTC issued its first formal guidance allowing “binary event contracts” to be traded on regulated exchanges, provided they met certain capital‑adequacy standards. By 2020, the agency approved Kalshi’s application to become a designated contract market, citing the platform’s “robust risk‑management architecture.”
Polymarket entered the U.S. market in 2021 under a similar framework, arguing that its contracts were “information‑based financial products.” However, a 2022 internal CFTC memo—leaked to the press—expressed concern that the agency’s oversight was “insufficient to address the gambling‑like characteristics of sports contracts.”
In response, the CFTC launched a public comment period in early 2023, receiving over 1,200 submissions. Industry groups such as the Digital Commodities Association advocated for a clearer rulebook, while consumer‑advocacy NGOs like the Consumer Federation of America warned of “predatory practices targeting vulnerable bettors.” The agency ultimately issued a final rule in September 2023 that left sports contracts in a gray zone, stating they would be monitored but not prohibited.
Senator Schiff’s criticism that “the CFTC is greenlighting these markets and even promoting their growth” reflects frustration from lawmakers who see the agency’s ambiguous stance as tacit approval. The bill’s sponsors argue that only Congress can definitively close the loophole, a stance supported by former CFTC Commissioner William R. “Bill” Coates, who testified that “without explicit statutory language, the CFTC will continue to interpret prediction markets as commodities, leaving states and tribes out of the loop.”
As the regulatory gap narrows, the final chapter assesses the economic fallout that could follow a congressional ban.
With the regulatory landscape clarified, the next step is to gauge the market impact of a potential prohibition.
What Will the Ban Mean for the $2 Billion Prediction‑Market Industry?
Projected Financial Fallout and Market Realignment
Industry analysts estimate that the combined annual trading volume of Kalshi and Polymarket exceeds $2 billion, with sports contracts accounting for roughly $240 million. A bullet‑KPI graphic (see data viz) summarizes the sector’s key metrics before the proposed ban.
According to a Bloomberg analysis published in February 2024, the removal of sports contracts could reduce overall platform liquidity by up to 15 percent, driving up bid‑ask spreads on non‑sports contracts and potentially discouraging new retail entrants. The same report warned that “the loss of a high‑visibility product line may erode brand awareness, making it harder for platforms to attract institutional capital.”
From a fiscal perspective, the ban could also affect state tax revenues. Since 2021, several states have begun collecting a 5 percent excise tax on winnings from prediction‑market platforms that operate under state licensing agreements. The projected loss of sports‑related wagering could shave $12 million annually from state coffers, according to the Center for State Tax Policy.
Conversely, proponents argue that the ban will redirect bettors toward state‑regulated sportsbooks, boosting public‑sector revenues and enhancing consumer protections. The American Gaming Association (AGA) estimates that a 10 percent shift of prediction‑market bettors to licensed sportsbooks could generate an additional $200 million in state tax receipts nationwide.
For the platforms themselves, the immediate operational challenge will be to re‑engineer their product catalogs. Kalshi’s 2023 roadmap already outlines a pivot toward macro‑economic events, while Polymarket has announced plans to focus on “information‑driven markets” such as election outcomes and climate data. Both companies have set aside $45 million in reserve funds to cover potential legal liabilities arising from contract cancellations.
In sum, the ban promises a reshaping of a nascent industry, with ripple effects across regulators, tribal economies, and state budgets. The final chapter will explore the broader political calculus and what the future may hold for lawmakers navigating this cross‑section of finance, sport, and sovereignty.
Looking ahead, the debate over prediction‑market regulation is likely to influence future congressional agendas on emerging digital finance.
Frequently Asked Questions
Q: What does the bipartisan bill seek to prohibit?
The legislation would stop any CFTC‑regulated prediction‑market exchange, such as Kalshi or Polymarket, from listing contracts that reference professional or college sporting events.
Q: Why do senators say the bill is needed now?
Senators argue that current CFTC oversight creates a backdoor for sports wagering that bypasses state gambling laws, threatens tribal sovereignty and offers no public revenue.
Q: How might the ban affect existing prediction‑market users?
If passed, platforms would have to delist sports‑related contracts, potentially freezing millions of dollars in open positions and forcing traders to shift to traditional betting venues.
