Inside Kalshi CEO Tarek Mansour's testy relationship with Indian casinos -- and how it could pose an existential threat: 'Lying little twerp'

Kalshi CEO Tarek Mansour's failed negotiations with Native American tribal leaders over the prediction market platform's business have escalated into lawsuits that could threaten the company's existence. Tribes argue Kalshi's event wagering constitutes unauthorized sports gambling under federal law, while Kalshi contends its offerings are financial instruments. A recent Ninth Circuit ruling favored the tribes, setting up a potential Supreme Court showdown.