Kalshi CEO's Relationship With Indian Casinos Sparks Legal Battle

Kalshi's relationship with Native American casinos has deteriorated following unsuccessful attempts by CEO Tarek Mansour to resolve disputes with tribal leaders. These disagreements have led to a series of lawsuits that could pose an existential threat to the prediction market company.

Kalshi allows users to wager on a wide range of real-world events, from entertainment awards to economic indicators. According to a source close to the company, sports event betting accounts for up to 70% of its estimated $4 billion in revenue for the 12 months ending in July.

While Kalshi describes its wagers as financial instruments called "event contracts" and "swaps," Native American tribes argue they constitute unauthorized sports gambling under federal Indian gaming laws and have initiated legal action to halt the practice. Earlier this month, the Ninth Circuit of the U.S. Court of Appeals ruled against Kalshi in one tribal lawsuit, paving the way for a potential Supreme Court challenge that could significantly impact the company's operations.

The conflict surfaced publicly after a March 2025 video call between Mansour and Victor Rocha, a member of the Pechanga Band of Indians and conference chairman for the Indian Gaming Association. Kalshi had hoped Rocha could mediate, but Rocha, known for his assertive stance on tribal issues, rejected Mansour's offer to join Kalshi as an advisor. Rocha stated that Mansour's overture felt like an attempt to trivialize tribal representation and a ploy to divide the Native American community, while Kalshi was siphoning revenue from tribal casinos.

A Kalshi spokeswoman indicated that neither she nor Mansour recalled the initial call with Rocha. However, insiders suggest that subsequent failed discussions have left Kalshi executives frustrated with the tribes' arguments, particularly noting the $46 billion in gambling revenue reported by the Indian Gaming Commission in the previous year, an increase from the prior year, while simultaneously claiming financial strain.

Kalshi executives have reportedly characterized tribal gaming as a dominant industry, not an underdog, and described the tribes' actions as a coordinated campaign to stifle competition, even as they highlight revenue losses impacting community programs.

Following the initial exchange, Mansour and Rocha participated in a second video call, joined by other Kalshi executives and tribal gaming leaders, including Jason Giles, executive director of the Indian Gaming Association. While the meeting began amicably, the tone shifted when Mansour discussed "generational burden." Giles recounted historical hardships faced by Native American tribes, including disease, war, and forced relocation, such as the Muscogee (Creek) Nation's experience on the Trail of Tears.

Mansour shared his own experiences of "generational burden" as a Lebanese Christian facing political repression. Rocha, however, found Mansour's claims of understanding the Native American plight to be insincere, describing the interaction as "car salesman-esque."

Giles also expressed skepticism, interpreting Mansour's discussion of potential partnerships with "large distribution networks" as an attempt to offer wagers on casino floors. Giles viewed this as a potential endorsement of Kalshi's products that could undermine tribal legal standing.

Following these calls, Giles began advising tribes about Kalshi, suggesting cease-and-desist orders. Tensions further escalated in subsequent emails between Rocha and Kalshi's head of corporate development, Sara Slane, regarding Mansour's participation in a webinar. Rocha's assertion of "taking the gloves off" and Slane's questioning of the webinar's benefit indicated a breakdown in communication, culminating in Rocha's declaration, "See you in court."

Rocha later publicly criticized Kalshi on social media, referring to Mansour as a "lying little twerp." A source close to Kalshi countered that the company was attempting constructive dialogue and offered an "olive branch" that Rocha rejected.

In the spring and summer of 2025, tribes filed lawsuits against Kalshi in California, New Mexico, and Wisconsin. Kalshi has argued its contracts are financial instruments, distinct from gambling. However, the Ninth Circuit's ruling in favor of the Blue Lake Rancheria and Chicken Ranch Rancheria tribes suggested that Kalshi's sports event contracts could be classified as Class III gaming activities under the Indian Gaming Regulatory Act.

Amidst the legal challenges, the Tunica-Biloxi Tribe of Louisiana announced its own prediction market app powered by Kalshi, with Chairman Marshall Pierite stating a desire to embrace technological advancements. This move was met with disappointment by Giles.

Despite the legal and inter-tribal disputes, Kalshi has continued to attract venture capital funding, with reports of ongoing talks for significant additional financing that could value the company at $40 billion. Investors appear optimistic about Kalshi's prospects in overcoming legal challenges and the novelty of its business model.