TLDR
- The Indian Gaming Association held its 2026 Summer Legislative Summit in Washington this week.
- Tribal leaders are asking Congress to amend the CLARITY Act to block sports and casino-style betting on prediction markets.
- IGA Chairman David Z. Bean called prediction markets one of the biggest threats to tribal gaming in decades.
- California tribes are still targeting 2028 for a tribally led online sports betting ballot initiative.
- Tribes say prediction markets have already cost them up to five percent of gaming revenue, and some have filed lawsuits against platforms like Kalshi and Robinhood.
Tribal leaders from across the country gathered in Washington this week for the Indian Gaming Association’s 2026 Summer Legislative Summit.
The two-day event brought tribal representatives face to face with senators and congressional staff. Their main goal was to protect tribal gaming from the rise of prediction market platforms.
These platforms let users bet on outcomes like sports results or election results. Tribal leaders argue this is gambling in disguise, and it falls outside the rules that govern casino and sports betting.
Push for Changes to the CLARITY Act
The centerpiece of the summit was a request to amend the CLARITY Act. Tribal leaders want language added that would ban sports and casino-style betting through prediction markets.
They also want the law to state clearly that tribal, state, and federal gaming rules stay in place. Without that language, leaders say prediction markets could grow without any real oversight.
IGA Chairman David Z. Bean said the issue has united tribes across the country. He called it one of the biggest threats tribal government gaming has faced in a generation.
Bean said the summit builds on more than a year of outreach to lawmakers. He said some senators already support the tribes’ position, while others are still weighing the issue.
His message to Congress has stayed consistent. He argues prediction markets are not just financial products, but a form of gambling that puts tribal governments at risk.
Tribes Move Forward With 2028 Betting Plans
While tribal leaders lobbied in Washington, California tribes kept their focus on a longer-term plan. CNIGA Chairman James Siva spoke at a gaming legislators’ meeting in San Diego this week.
Siva said tribes are still aiming for 2028 to bring a tribally led online sports betting measure to California voters. He said the plan needs to be fair to all tribes, including those without casinos.
Federal law gives tribes exclusive rights to offer certain types of casino gaming, including sports betting. Any online expansion would need voter approval and new agreements with the state.
Siva also addressed the financial pressure tribes are already feeling. He said prediction markets are cutting into tribal gaming revenue right now, not just in the future.
He estimated the losses at close to five percent so far. Siva called prediction markets the biggest threat the tribal gaming industry has faced since it began.
Several tribes have already taken legal action. They have filed federal lawsuits against platforms including Kalshi and Robinhood.
The lawsuits claim these platforms violate federal law and break tribal exclusivity agreements. Those cases are still working through the courts.
For now, tribal leaders say their strategy is to keep educating lawmakers while pursuing legal action against the platforms they see as the biggest threat to their industry.
