Cayuga Nation sues Caesars Sportsbook over mobile bets placed inside New York reservation

The Cayuga Nation of New York has filed a federal lawsuit against Caesars Sportsbook, saying the operator accepted mobile sports bets from within the tribe’s 64,015-acre reservation without the authorization required under the Indian Gaming Regulatory Act (IGRA). For high-risk operators, the case is a reminder that “we’re licensed in the state” is not always the end of the analysis when tribal land and geofencing enter the picture.

1. According to the complaint filed on June 16 in the US District Court for the Northern District of New York, Caesars Sportsbook accepted mobile sports wagers from people located within the Cayuga Nation reservation between January 2022 and July 2025. The tribe says IGRA allows Class III gaming on tribal lands only under a federally approved tribal-state compact, and the Cayuga Nation has not entered into one.
2. On that theory, the tribe argues sports betting could not legally be offered within the reservation by any operator, including Caesars. The complaint says the Nation sent Caesars a cease-and-desist letter in June 2025, and that the following month Caesars agreed to implement geofencing measures to block access to its sportsbook within reservation boundaries.
3. The lawsuit also adds a Lanham Act false-advertising claim. The Cayuga Nation says Caesars marketed its mobile sportsbook as legally available throughout New York without disclosing that sports betting was not lawfully available on the Cayuga reservation, creating the impression that the product could be used anywhere in the state with no geographic limits.
4. This is not the tribe’s first run-in with IGRA arguments. Last year, a court ruled in favor of the Cayuga Nation in a lawsuit against the State of New York over gambling rights, and the current complaint leans on that same framework.
5. The Nation is asking for a declaration that Caesars violated federal law, plus damages, disgorgement of profits, and a full accounting of revenue generated from the alleged unauthorized gaming activity. In a press release, Cayuga Nation representative Clint Halftown said Caesars infringed the tribe’s sovereign rights by offering sports betting within reservation boundaries without the Nation’s authorization.

The complaint also cites Ho-Chunk Nation v. Kalshi, a federal case in Wisconsin involving tribal objections to Kalshi’s sports-related event contracts. The Cayuga Nation appears to be using that case to support a broader point: tribes may use IGRA to challenge gaming activity on tribal lands that happens without their consent or authorization. Kalshi is not a defendant here, but the citation tells you where this fight may be headed next.