Tribal casinos, state lottery operators, and horse racing tracks are all opposing prediction markets in US courts right now.
Notice what they have in common: physical infrastructure that cannot be moved to a browser.
Ten Tribal associations filed an amicus brief in the Kalshi case. Arizona issued an injunction. Washington State AG filed an action. The opposition is organised, well-resourced, and arguing on moral grounds.
The moral grounds are not entirely wrong. Problem gambling concerns in a new, lightly regulated product category are legitimate. But that is not the core of the legal argument. The core is competitive threat to operators with exclusive or quasi-exclusive market positions - positions that depend on a legal framework predating the product.
This pattern is not new. The land-based casino industry ran the same playbook against online gambling expansion in the 1990s and 2000s. Physical operators with exclusive state relationships argued against a product they could not offer at their existing facilities. Some states listened. Some did not. The product expanded regardless.
The prediction markets fight is the same structural argument with a different product. Physical operators cannot run Kalshi's model without a separate CFTC registration. They cannot compete on a browser with the same cost structure as their buildings. So they contest the regulatory classification - the only lever available.
For European sportsbook operators watching this: the US outcome will shape the regulatory conversation here within 18-24 months. Markets that gave early guidance - Gibraltar yes, France no - will have market structure decisions to revisit. Markets that have not classified prediction markets yet are watching the US proceedings.
The Tribal brief is not the end of this. It is the middle.