Wisconsin is now one step away from legal statewide mobile sports betting. The Senate approved A.B. 601 on Tuesday, sending the bill to Gov. Tony Evers after a debate that mixed tribal sovereignty, market access, and concern about gambling harm.
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Not everyone in Madison liked the path or the setup, but the bill passed anyway. A.B. 601 cleared the Wisconsin Senate on a 21 to 12 vote after earlier passing the Assembly in February. Now the proposal sits with Gov. Tony Evers, who has already backed in person tribal sports betting in Wisconsin and is not running for re election this fall.
At its core, the bill would let Native American tribes with land based gaming experience offer statewide mobile sports wagering. Wisconsin already allows legal sports betting, but only at tribal casinos and on tribal lands. Under A.B. 601, betting could happen anywhere in the state, as long as the wagering system runs through tribes under updated gaming compacts. Federal approval would still be needed before any launch could happen.
Supporters argued the bill keeps control in tribal hands while giving Wisconsin a legal answer to betting that is already happening through offshore books and federally regulated prediction markets. That point has carried weight in several states lately, especially where residents can already place sports related wagers outside the normal sportsbook system. Backers also said a regulated tribal model could pull hundreds of millions of dollars in illegal wagering into a legal market.
Democratic Sen. Dianne Hesselbein framed the bill in those terms during debate. “I really think that this moment is about collective assertion of tribal sovereignty and the preservation of exclusivity that tribes have fought decades to establish,” she said.
That argument helped carry the bill across the line, but the margin told its own story. The Senate has an 18 to 15 Republican majority, yet only nine Republicans joined 12 Democrats to pass the bill. One Republican senator had warned ahead of the vote that at least 17 GOP votes should back the proposal before it moved. That did not happen.
A lot of the opposition centered on who would control the market and who might get squeezed out. The proposed framework looks somewhat like the Florida model, where tribal control sits at the center of statewide mobile betting. In Wisconsin, though, the setup could allow more than one tribal linked option for bettors, depending on which tribes and partners strike deals.
Republican Sen. Steve Nass was one of the clearest critics. “Voters didn’t elect Democrats and Republicans to bring more gambling to the state of Wisconsin,” Nass said. “In fact, public revenue built on addiction, family disintegration, and predatory practices is neither moral nor sustainable. Making gambling easier and more accessible online will only accelerate these harms.”
Nass also pointed to the limited competition baked into the bill. He said “other entities” that offer online sports betting would be shut out unless they reach agreements with tribes “at great expense.”
“Competition is nil,” he added.
That complaint lines up with earlier criticism from major sportsbook interests. Industry representatives had argued the tribal revenue split in Wisconsin could leave national operators such as DraftKings and FanDuel with little reason to enter the market. According to prior reporting on the bill, tribes would keep at least 60% of mobile wagering proceeds, a level some commercial operators said would make the economics too thin.
Nass said he also floated another route by proposing a constitutional amendment, which would have let Wisconsin voters decide the issue directly. Even so, legislative leaders kept the bill moving. Hesselbein said Senate Republicans had indicated Tuesday would be the final working day of the year, adding urgency to the debate and vote.