Lawsuit Seeks to Block Wisconsin’s Tribal Online Sports Betting Law

A conservative legal group has filed a lawsuit seeking to block Wisconsin’s new online sports betting law before it ever gets off the ground. The Wisconsin Institute for Law and Liberty (WILL) sued Gov. Tony Evers and members of his administration on August 5 in Waukesha County Circuit Court, asking a judge to declare the law unconstitutional and stop any further steps toward statewide mobile wagering.

The law in question, passed with bipartisan support in April, would allow Wisconsin residents to place sports bets from a mobile device anywhere in the state as long as the server processing the wager sits on tribal land. WILL argues that workaround runs headlong into a 1993 constitutional amendment that bars the state legislature from authorizing new forms of gambling beyond a short list of exceptions: the state lottery, bingo, raffles, and pari-mutuel betting.

How the “Hub and Spoke” Model Works

Wisconsin’s approach mirrors a structure other states have used to bring tribal gaming online. Under the law, a bet placed on a phone or computer anywhere in Wisconsin is legally considered to have occurred at the “hub” — a server located on federally recognized tribal land — rather than at the “spoke,” where the bettor is physically sitting. That legal fiction is what currently allows the state to argue mobile sports betting doesn’t violate the constitutional gambling ban, since the wager is treated as taking place on sovereign tribal territory rather than elsewhere in the state.

WILL, representing the Brown County Taxpayers Association and Citizens Defending Liberty, contends that legislators cannot accomplish indirectly what the constitution plainly forbids them from doing directly. The suit also argues Evers lacks the authority to negotiate new tribal gaming compact amendments needed to implement the law, since those amendments would still require sign-off from the U.S. Department of the Interior before taking effect.

An Equal Protection Argument, Too

Beyond the state constitutional claim, WILL’s complaint leans on the U.S. Constitution’s Equal Protection Clause, arguing the law “provides a benefit to some — not all — based on, at bottom, race,” since only Wisconsin’s 11 federally recognized tribal nations would be authorized to run the mobile sportsbooks. The lawsuit does not attempt to unwind existing tribal gaming compacts more broadly — attorneys say the challenge is narrowly aimed at the sports betting expansion itself.

The governor’s office pushed back quickly. A spokesperson for Evers characterized WILL as a group “actively working to undermine the sovereignty of the Tribal Nations in Wisconsin” and said the administration would fight the suit every step of the way. WILL attorneys, for their part, insist the case isn’t about tribal sovereignty at all, but about whether the legislature ever had the constitutional authority to expand gambling in the first place without asking voters to approve another amendment.

What This Means for Wisconsin Bettors

Under current law, sports betting is already legal at Wisconsin’s tribal casinos in person — the dispute is specifically about extending that access to mobile apps statewide. Bettors in the state can currently walk into a tribal casino sportsbook to place a wager, but placing that same bet from a phone at home remains off-limits until the new law is either implemented or struck down. That puts Wisconsin behind most of its neighbors; residents who want to bet on their phones today generally have to cross state lines into states with established mobile markets, where major operators already run DraftKings promo code offers and other sign-up deals unavailable to anyone stuck using an in-person tribal sportsbook.

What Happens Next

None of WILL’s claims have been proven in court, and legal observers expect the case to take months to resolve. In the meantime, tribes and state officials had already begun negotiating the compact amendments needed to bring the hub-and-spoke model to life, with any final agreement still requiring approval from the U.S. Department of the Interior before publication in the Federal Register. That federal step alone typically adds weeks to any rollout timeline, and a pending state lawsuit only complicates matters further.

For now, the lawsuit doesn’t undo Wisconsin’s existing gaming compacts or shut down in-person tribal sportsbooks that are already operating. It targets only the mobile expansion authorized by the new law. But until a Waukesha County judge rules — or the case works its way through appeals — Wisconsin’s path to a statewide mobile sports betting launch remains stuck in legal limbo, leaving both tribes and prospective bettors waiting to see whether the hub-and-spoke workaround can survive a direct constitutional challenge.