The Brief A new lawsuit seeks to halt online sports betting in Wisconsin before it launches. The Wisconsin Institute for Law and Liberty argues the new law violates the state and U.S. constitutions. A new lawsuit is trying to stop Wisconsin online sports betting before it ever kicks off. In February, the Marquette Law School Poll found 64% of Wisconsinites oppose the state legalizing online sports betting. It's just being processed on the server, and that's why we would argue that federal law doesn't preempt it here," Vebber said.