New York City Council Speaker Julie Menin fired off formal seven-page letters on Tuesday to four prediction market platforms — Kalshi, Polymarket, Coinbase, and Gemini Titan — demanding answers within 14 days on more than three dozen questions about their local advertising and whether their marketing targets young New Yorkers. The move plants city government squarely in the middle of a fight that has already drawn in state attorneys general, federal regulators, and a Manhattan judge.
The council's inquiry, detailed in a New York City Council press release, is examining whether current city consumer protection laws adequately shield residents from false or deceptive marketing by prediction market platforms. Notably, the probe leans on municipal consumer protection standards rather than state gambling statutes, which the council says lets the city penalize deceptive advertising regardless of how the Commodity Futures Trading Commission classifies these contracts. As Bloomberg reported, the letters went to Polymarket, Kalshi, Coinbase Global Inc., and Gemini Space Station Inc.'s Titan platform.
Menin brings a specific résumé to this fight. Before becoming Council Speaker, she served as the city's Commissioner of Consumer Affairs and worked as a regulatory attorney, a stint during which she increased consumer restitution by 70% and prioritized crackdowns on deceptive business practices, according to her council biography. That background appears to be shaping the city's approach: rather than debate whether prediction contracts are gambling or finance, the council is going straight after the marketing.
The Fake Trades That Triggered Scrutiny
The council's probe specifically targets allegations from a June Wall Street Journal investigation, which found that Polymarket paid college-aged influencers to film fabricated trades on lookalike dummy websites such as poiymarket.com, touting $1.9 million in fake wagers across 1,100 TikTok videos, as reported by CBS News. The tactic put undisclosed influencer marketing and simulated trading activity at the center of the city's concerns about how young people are being drawn into these markets.
Prediction platforms have not been shy about courting New Yorkers in 2026. Transit ad campaigns have blanketed MTA subway stations, and the companies have run competing publicity stunts — Kalshi offering $50 grocery credits and Polymarket hosting a free grocery pop-up in February, according to Business Insider. Bloomberg's coverage included a photo by Michael Nagle of a Polymarket advertisement inside a New York subway station, capturing just how visible these platforms have become in the city's daily commute.
A Regulatory Collision Playing Out in Real Time
The council's letters landed just a day after a dramatic clash between federal and state authority. On Tuesday, the CFTC invoked emergency powers under the Commodity Exchange Act to order Kalshi to keep operating in New York, directly countering a $36 billion state enforcement lawsuit filed by New York Attorney General Letitia James, according to POLITICO Pro. That fight traces back to a Manhattan court loss for Kalshi, when U.S. District Judge Analisa Torres denied the company's request for a preliminary injunction against the state, ruling that the Commodity Exchange Act does not preempt state gambling laws as applied to sports-event prediction contracts.
The city's move adds a third, distinct layer to that fight — one that sidesteps the state gambling debate entirely. Where James is trying to shut Kalshi down or force state licensing, the council is instead asking whether the platforms' ads themselves broke local consumer protection rules, a strategy that creates legal exposure for the companies regardless of how the CFTC or state courts ultimately rule on their core business model.
How the Companies Are Responding
Corporate reactions have diverged. Coinbase said its platform complies fully with CFTC regulations, while Polymarket confirmed it would engage with the city council after previously promising an internal audit of its promotional content, per the Bloomberg report on the probe. Neither Kalshi nor Gemini's response was detailed in the same account.
The city's action also lands amid growing congressional attention. In July, U.S. Senators John Curtis and Adam Schiff requested a federal CFTC investigation into prediction markets, arguing that social media campaigns promoting binary event contracts as free money function as unregulated gambling rather than financial hedging, according to a statement from the senators' offices.
Part of a Wider National Pushback
New York's city-level scrutiny fits into a broader pattern of local and state governments pushing back against prediction markets throughout 2026. Wisconsin filed a state enforcement lawsuit in April, and Chicago advanced a municipal employee betting ban covering platforms like Kalshi and Polymarket in July, part of a trend Hoodline has tracked in its coverage of Chicago's staff betting ban. Maryland's top election official separately called for a probe of prediction markets over political wagering last month, while Kalshi has also faced consumer litigation this year over disputed payouts on a high-profile contract.
For now, the four platforms have two weeks to respond to Menin's questions. Whatever they say could shape not just how prediction markets advertise in New York, but how cities elsewhere decide to police an industry that federal regulators, state prosecutors, and now municipal consumer watchdogs are all racing to define.
