The Wisconsin Elections Commission (WEC) recently issued an advisory informing voters that state law prohibits individuals from wagering on the outcome of an election in which they cast a ballot. According to the WEC, violating this statute could result in the disqualification of a citizen's vote or referral to state prosecutors. The advisory cited a Wisconsin law dating back to 1849 that regulates the eligibility of voters based on financial interests in election outcomes.
Representatives and supporters of Kalshi, a platform for prediction markets, challenged the WEC’s interpretation of the law. Kalshi operates a marketplace where users trade "shares" on the outcome of events, including hundreds of upcoming midterm races. Supporters of the company characterized the enforcement of the 1849 statute as "voter suppression" and "illegal" in posts on social media. Kalshi advocates that its platform functions as a regulated financial exchange rather than a traditional gambling site.
Ann Jacobs, a commissioner with the WEC, stated that the advisory was a standard effort to inform the public about existing laws before the midterms. Jacobs said the intent of the law is to ensure voters choose candidates based on their qualifications rather than potential personal financial gain. She compared the restriction to other eligibility requirements, such as age and criminal supervision status.
Prediction markets like Kalshi and Polymarket have seen significant growth, with billions of dollars traded on events ranging from sports to politics. While federal regulators and some states have sought to restrict these markets, Kalshi has argued that its products are "swaps," a type of financial derivative, and should be governed by federal financial rules rather than state gambling laws. Minnesota recently became the first state to pass a specific ban on such prediction markets, while Wisconsin is among nearly two dozen states involved in legal disputes over their regulatory authority.
The disagreement highlights a clash between state-level consumer protection or gaming laws and the emergence of digital financial technology. If Wisconsin or other states successfully enforce these bans, it could set a precedent that restricts the growth of the fintech industry in those jurisdictions. Conversely, if Kalshi successfully challenges these laws in court, it would limit the power of state election boards to regulate the financial incentives surrounding the voting booth. This could lead to a significant shift in how election integrity is managed, moving oversight from state agencies to federal financial regulators like the Commodity Futures Trading Commission (CFTC).
The immediate impact will be felt during the upcoming 2026 midterm elections. Voters in Wisconsin currently face the risk of prosecution if they participate in these markets while voting. A final resolution is likely to depend on pending litigation between Kalshi and approximately 25 states. As of July 2026, no nationwide injunction has been issued to stop state commissions from enforcing these centuries-old statutes, meaning the risk to individual voters remains active through the current election cycle.