How Kalshi's Legal Battles With States Actually Affect What You Can Bet On

Why Federal Approval Doesn't Mean Universal Access

When Kalshi became the first CFTC-regulated prediction market platform in the United States back in 2021, it seemed like a watershed moment. Finally, Americans could legally trade on future events — everything from whether it would snow in New York to whether Congress would pass specific legislation — all above board and regulated.

But here's the catch that surprises most newcomers: federal approval doesn't automatically mean you can use Kalshi everywhere in America.

The United States operates with a dual regulatory system. The Commodity Futures Trading Commission (CFTC) — a federal agency — oversees derivatives markets, which is the legal category prediction markets fall under. But states maintain their own authority over gambling and financial activities within their borders. It's the same reason online poker remained legal in some states and banned in others, even after federal crackdowns ended.

For you as a user, this creates real, immediate consequences. Open Kalshi in Nevada or Washington state, and you'll be blocked. Try it in New York, and you'll have access to most markets — except elections. Live in Texas or California? You'll see the full range of offerings.

Where Kalshi Is Actually Blocked (And Why)

As of early 2025, Kalshi faces restrictions in several states, each with their own reasoning:

Complete Prohibitions

Nevada has been particularly aggressive in blocking prediction markets. The state's gaming regulators view these platforms as competing with traditional casinos and sportsbooks — industries Nevada has spent decades carefully controlling. Since Kalshi doesn't hold a Nevada gaming license (and arguably shouldn't need one under CFTC oversight), the state has effectively banned access.

Washington state has some of the strictest anti-gambling laws in the country, going so far as to make even social poker games technically illegal. Prediction markets, despite their informational purpose, trigger the same prohibitions.

Hawaii maintains a blanket prohibition on most forms of wagering, with very limited exceptions. Prediction markets haven't carved out an exemption yet.

Partial Restrictions

This is where things get more interesting — and more complicated.

New York allows Kalshi to operate but specifically prohibits election-related markets. After Kalshi won its court battle with the CFTC in 2024 to offer congressional control markets (more on that below), New York regulators stepped in with their own interpretation: election markets constitute illegal gambling under state law, regardless of federal approval.

For a New York user in October 2024, this meant you could trade on whether the Fed would cut interest rates (that market traded around 68-72% probability throughout September), but you couldn't access the congressional control markets that were seeing millions in volume nationwide.

Michigan has issued guidance that creates similar limitations, though enforcement has been inconsistent. The state's Gaming Control Board has suggested election markets may require additional licensing, effectively creating a gray area.

The Election Markets Battle: A Case Study in Real Impact

The most high-profile legal fight shows exactly how these battles affect what appears in your trading interface.

In September 2023, Kalshi filed a proposal with the CFTC to offer markets on which party would control Congress. The CFTC rejected it, arguing these constituted "gaming" rather than legitimate derivative contracts serving an economic purpose.

Kalshi sued. And in September 2024, a federal judge ruled in Kalshi's favor, saying the CFTC had overstepped its authority. The ruling specifically found that these markets weren't "gaming or contests" under the Commodity Exchange Act — they were legitimate event contracts that could provide economic value.

For roughly six weeks before the 2024 election, U.S. users (in permitted states) could trade on congressional control markets. These became some of Kalshi's highest-volume offerings, with the Senate control market alone seeing over $10 million in trading volume.

Here's what that looked like in practice: On October 15, 2024, the market asking "Will Republicans control the Senate after the 2024 election?" traded around 67% YES. That meant traders collectively believed there was about a two-thirds chance of Republican control. Someone buying YES shares at 67¢ would profit 33¢ if Republicans won (a 49% return on investment), or lose their 67¢ if Democrats maintained control.

But the legal victory was partial and temporary. The CFTC appealed, and state-level restrictions immediately complicated access. New York users never saw these markets. Nevada users couldn't access Kalshi at all. And the appeals court placed an administrative stay on the markets shortly after the election, meaning they may not return for future cycles without further legal clarity.

How This Actually Changes Your Experience

If you're new to prediction markets, you might wonder: does this really matter beyond election betting?

The answer is yes, in ways that aren't always obvious.

Sudden Market Disappearances

When legal status changes, markets can vanish with little warning. If you've placed trades in a market that gets suspended due to regulatory action, platforms typically handle it in one of two ways: they may settle all positions at the last traded price (you're bought out at current market value), or they may freeze the market until legal clarity arrives, locking up your funds.

During the election markets saga, some users reported confusion when markets they'd been tracking suddenly became inaccessible after certain state attorney generals issued guidance.

Geographic Arbitrage That You Can't Access

One of the stranger effects: users in different states sometimes see meaningfully different prices on the same underlying question when comparing across platforms. If a similar market exists on an offshore platform (like Polymarket, which isn't available to U.S. users without VPNs) and Kalshi, prices can diverge by several percentage points.

Normally, traders would spot these differences and place offsetting trades, bringing prices back in line — a process called arbitrage. But when some users are legally blocked from accessing certain markets, these price discrepancies can persist longer than they otherwise would. It's inefficient, but more importantly, it means the information value of these markets becomes slightly less reliable.

The Questions That Never Get Asked

Perhaps most significantly, regulatory uncertainty affects which markets Kalshi even proposes in the first place.

Legal teams review every market category. If something seems likely to trigger state-level challenges — say, markets on state ballot initiatives, local elections, or outcomes that might be considered "gaming" under various state statutes — the platform may simply not offer it, even if it would be economically useful or highly liquid.

You won't see a "Will Proposition 22 pass?" market for California ballot measures, even though such a market would likely attract significant trading interest and potentially provide valuable price discovery. The legal risk calculus doesn't favor it.

What This Means for the Future

The prediction market industry in the U.S. is still in its adolescence, legally speaking. Each court battle and regulatory decision sets precedent for what comes next.

Some states are moving toward greater acceptance. Arizona has explored explicit authorization for prediction markets as distinct from gambling. Colorado regulators have taken a relatively hands-off approach, watching how federal oversight plays out.

Others are moving in the opposite direction. After the 2024 election, several state legislators introduced bills to explicitly prohibit election betting, regardless of federal regulatory status.

For users, this creates an environment where what you can trade on may expand or contract based on where you live, regardless of what the platform is federally permitted to offer.

Making Sense of It as a User

If you're just getting started with prediction markets, here's what's actually useful to know:

Check your state's status first. Before you spend time exploring markets, verify whether Kalshi is available in your state and whether any categories are restricted. The platform will block you if you're in a prohibited state, but partial restrictions are less obvious.

Don't be surprised by market removals. If a market you're watching suddenly becomes unavailable, check whether there's been regulatory action. Platforms will typically announce major changes, but smaller adjustments can happen with minimal notice.

Understand this isn't "underground" betting. Unlike offshore sportsbooks or crypto prediction markets operating in legal gray areas, Kalshi is a regulated U.S. entity. The restrictions you encounter are legitimate regulatory decisions, not platform choices. The tradeoff is you're trading on a supervised platform with legal protections, but subject to ongoing legal evolution.

Markets reflect regulatory risk. When a category faces legal uncertainty, prices may behave oddly — not because of the underlying event, but because traders are pricing in the possibility the market itself might be suspended. You might see wider spreads (bigger gaps between buy and sell prices) or lower volume in legally uncertain categories.

The Bigger Picture

These legal battles aren't just technicalities — they're fundamentally about whether prediction markets will become a mainstream financial and informational tool in the United States, or remain a niche product available only to some users in some places for some questions.

The outcome matters beyond just whether you can bet on elections. Prediction markets have shown promise in areas like forecasting supply chain disruptions, anticipating regulatory changes, and aggregating distributed knowledge about complex questions. The more restricted their legal environment, the less useful they become for these broader purposes.

For now, the landscape remains fragmented. What you can trade on depends on where you live, which courts have ruled on which questions, and how different state agencies interpret overlapping federal and state authority. It's messy, it's evolving, and it directly affects what you see when you open the app.

Understanding these dynamics won't tell you which markets to trade or what positions to take — but it will help you understand why certain options appear and disappear, and what the realistic boundaries are for prediction markets as they currently exist in the United States.