Baltimore, Maryland files a lawsuit against prediction-market platforms Kalshi and Polymarket, alleging they are operating in violation of state gambling laws. Mayor Brandon Scott and the Baltimore City Council also name other companies they describe as involved in facilitating access to the products, including Coinbase, Robinhood, and Webull, according to both reports.
The city’s complaint focuses on alleged illegality under existing gambling regulations and also cites consumer-protection or deceptive-trade-practice claims. The outlets describe the case as part of a broader effort by the city to challenge how sports betting-like activity is offered through online “prediction markets.” While the core targets—Kalshi and Polymarket—are consistent across the coverage, the reporting emphasizes the inclusion of brokerage and trading platforms as partners or channels in the city’s legal theory.
