The Wisconsin Department of Justice (DOJ) has initiated legal action against several well-known financial platforms, including Kalshi, Robinhood, Coinbase, Polymarket, and Crypto.com. This decision, made public on April 23, 2026, aims to address what the department describes as the companies’ involvement in illegal sports betting—an activity classified as unlawful commercial gambling under state law.
Wisconsin Attorney General Josh Kaul has emphasized the gravity of the situation, stating, “Thinly disguising unlawful conduct doesn’t make it lawful.” He underlined the need for corrective measures, asserting that “the companies’ alleged facilitation of sports betting in Wisconsin should be shut down.” This strong stance indicates the state’s commitment to upholding its gambling laws and protecting residents from potential exploitation.
The lawsuits contend that the accused platforms have been marketing sports betting under the guise of “event contracts,” which operate in a manner similar to traditional betting systems, thereby masking their true nature. Furthermore, the complaints indicate that these companies have been profiting from Wisconsin residents by collecting fees for each bet placed, raising concerns about their compliance with state regulations.
As these legal proceedings unfold, they could have significant implications for both the platforms involved and the broader landscape of online betting in Wisconsin. The DOJ’s action signals a proactive approach to address and curtail practices perceived as undermining the state’s gambling laws, and it remains to be seen how these companies will respond to the allegations.


