● Live Wisconsin AG suit vs Kalshi & Polymarket pending · NY/IL insider-trading orders in effect · Updated May 2026
← News & Updates
RegulationPlatform news

Google Bans Prediction-Market Ads in Ohio — Second State After Nevada, and Regulators Weren't Told First

Google updated its US prediction-markets advertising policy to prohibit ads for prediction-market contracts in Ohio, effective June 2, 2026. Ohio joins Nevada as the only states excluded since Google opened the category in January. The Ohio Casino Control Commission says it did not request the ban — adding a new, private-sector front to a fight that has so far run through courts and statehouses.

Google has updated its prediction-markets advertising policy to prohibit ads for prediction-market contracts and related products in Ohio, effective June 2, 2026. The policy change makes Ohio the second US state excluded from the category since Google opened it in January 2026, when the company began allowing prediction-market advertising in every state except Nevada. Google's policy page states the change directly: "In June 2026, Google will update our Prediction markets policy in the United States to prohibit the advertisement of prediction markets contracts and related products ads in Ohio. Consequently, advertising of prediction markets and related products in Ohio is prohibited effective June 2, 2026." The eligibility rules elsewhere are unchanged: CFTC-registered Designated Contract Markets and National Futures Association-authorized brokerages can advertise, provided they hold Google certifications.

The notable detail is that Ohio's own gaming regulator did not ask for the ban. "The Ohio Casino Control Commission did not solicit any particular action from Google, but applauds Google for its efforts to ensure that marketing targeting Ohioans fully complies with Ohio law," OCCC interim executive director Andromeda Morrison said in a statement to Gambling Insider. Google acting ahead of — rather than in response to — a regulator's request is a meaningful data point. The likeliest reading is that Google's policy team is tracking state-level enforcement posture and de-risking proactively: Ohio sent cease-and-desist orders to Kalshi, Crypto.com, and Robinhood in April 2025, making it one of the earliest state enforcers even though it never escalated to litigation the way Arizona, Wisconsin, or Rhode Island later did.

The Ohio action adds a third front to a fight that has so far run through two: federal courts (the CFTC's six state preemption suits, with the Arizona preliminary injunction as the template) and statehouses (Minnesota's felony ban, fifteen-plus state bills). Ad-platform policy is different in kind. Google is not a party to any litigation and is under no court order; it is making a private commercial judgment about regulatory risk, state by state. That judgment matters operationally because paid search is a primary acquisition channel for every consumer trading product. A platform that wins its preemption case in federal court but cannot advertise in a state has won the legal argument and lost the growth channel. And unlike a court ruling, Google's policy can change in either direction at any time, with no docket to watch.

Two implications follow. First, the Nevada-plus-Ohio list is unlikely to stay at two. Google's stated logic — compliance with state law — applies at least as strongly to Minnesota, where operating a prediction market becomes a felony on August 1 unless the federal court intervenes. If Google applies the policy consistently, Minnesota should be the next addition, and the litigation-state list (Arizona, Wisconsin, Illinois, Connecticut, New York, Rhode Island) is the watch list after that. Second, the asymmetry hurts smaller operators most. Kalshi, Robinhood, and DraftKings have brand recognition and owned channels; a newer entrant relying on paid acquisition to build awareness in a 11.8-million-person state just lost its primary tool. For Ohio residents nothing changes about platform access itself: Kalshi, Robinhood, and the other CFTC-licensed venues remain available in Ohio. What changes is what they are allowed to show you.

Recent updates


Kalshi Suspends Congressional Candidate for Trading on Own Race — Senate Already Banned Members

Kalshi disclosed on August 31 that it suspended North Carolina congressional candidate Laurie Buckhout for three years and fined her $2,589 for trading on her own race — the first publicly known enforcement action against a candidate for prediction market insider trading. Kalshi said it found multiple politicians trading on races they were involved in, including former Congressman George Santos. The Senate had unanimously banned its members and staffers from prediction market trading on April 30. CNN published a major feature on September 24 documenting election officials' concerns about disinformation and insider trading risk from prediction markets as the midterms approach.

Pew Research: Prediction Market Volume Doubled May-July, Sports Now Largest Category

A Pew Research Center analysis published September 23 found that combined monthly trading volume on Kalshi and Polymarket more than doubled from May to July 2026 — rising from $26 billion in May to $53 billion in July — driven primarily by sports contracts. Sports is now the largest trading category on both platforms. During the FIFA World Cup in June and July, Kalshi's monthly sports volume reached $58 billion. Over the same period, Americans wagered roughly $40 billion at licensed sportsbooks — suggesting prediction market sports volume has approached or exceeded licensed sports betting in dollar terms.

Democrats Now 60% Senate, 90% House Favorites on Prediction Markets — Biggest Shift Since 2024

Prediction markets on Kalshi and Polymarket have moved decisively toward Democratic control of both congressional chambers in the 2026 midterms. Democrats are priced at approximately 60% to win Senate control (Republicans 40%) and roughly 90% to win House control as of September 21. Republicans had been at 80%+ in Senate control markets when the market opened in November 2024. The shift began in February 2026 following the Iran war and has accelerated through fall as rising gas prices pushed Trump's approval ratings lower. More than 500 active midterm markets are live across Kalshi and Polymarket combined.