Judge signals tribal victory against Kalshi in first sovereignty ruling

A federal judge has predicted tribal nations will succeed in blocking Kalshi's sports contracts, marking the first major legal victory using tribal sovereignty rather than state gambling law. Blue Lake Rancheria and Wisconsin tribes argue Kalshi's $70 million in executive trades violate the Indian Gaming Regulatory Act by offering unlicensed Class III gaming on tribal lands. While Kalshi has won in Tennessee and New Jersey appeals court on federal preemption grounds, Judge Jacqueline Scott Corley acknowledged Kalshi may have "found a way around prohibitions on interstate gambling that were created with the Tribes' best interest in mind." The tribal angle introduces a distinct federal framework separate from state law, potentially forcing geographic blocking technology that could shrink Kalshi's addressable market significantly.