Cardroom Injunction Tests the Limits of California Tribal Exclusivity

California tribes have spent a quarter century defending what they consider the bedrock of their gaming economy: the exclusive constitutional right to offer house-banked card games like blackjack. This spring, that fight took a turn against them. A San Francisco Superior Court judge issued a preliminary injunction blocking state regulators from enforcing new rules that would have effectively banned blackjack-style games at California cardrooms — the latest twist in a dispute over California tribal gaming exclusivity that has consumed courtrooms, the legislature, and tens of millions of dollars in political spending.

Judge Richard Darwin's injunction halts regulations advanced under Attorney General Rob Bonta that targeted how the state's roughly 80 licensed cardrooms structure their table games. For the tribes, the ruling is a setback in a campaign that seemed, only a year ago, to be gaining ground on multiple fronts.

The third-party banker workaround

At the center of the dispute is a mechanism that has operated in plain sight for decades. California's constitution, amended by voters in 2000, reserves Nevada-style house-banked games to tribal casinos operating under compacts. Cardrooms cannot legally act as the bank. Instead, they contract with third-party proposition player companies whose employees sit at the tables, collect losing bets, and pay winners — formally serving as the bank so the cardroom itself does not. Dealers must periodically offer players the chance to bank the game; nearly all decline, and the third-party employee carries on.

Tribes call this an end run around their exclusivity — exclusivity they pay for through revenue-sharing obligations in their compacts. Cardrooms call it a lawful, regulated business model that has survived repeated scrutiny. The economic stakes are not abstract: blackjack is the most lucrative table game in the state, and tribal operators argue every cardroom blackjack hand dilutes the value of rights underpinning a market our analysis pegs at more than $20 billion in annual economic activity — see our California market analysis.

Courts, the legislature, and the regulator — all in play

The tribes' legal campaign has run on three tracks. The legislative track produced Senate Bill 549, which gave tribes a one-time right to sue cardrooms in Sacramento County Superior Court over banked games — standing they otherwise lack as sovereign governments suing over state-regulated businesses. That case ended abruptly in October 2025, when Judge Lauri Damrell dismissed it, reasoning that federal gambling law superseded the state measure. The regulatory track — Bonta's proposed game rules — is now frozen by the Darwin injunction. The litigation track continues on appeal, and few observers expect the tribes to abandon a fight they have waged this long.

Cardroom cities, meanwhile, have emerged as the tribes' most formidable political adversary. Municipalities like Hawaiian Gardens and Commerce draw close to half their general funds from cardroom taxes, and San Jose officials say cardrooms contribute roughly $30 million a year — enough to fund 150 police officers. Any rule that kills cardroom blackjack lands directly on city budgets, which is why mayors and police unions, not just gambling companies, now lobby Sacramento against the tribes' position.

What the stalemate means for the bigger picture

The cardroom fight cannot be separated from the broader chessboard of California gaming. Tribes have deliberately deferred another run at sports wagering, as we covered in our analysis of why California tribes are waiting until 2028, in part to consolidate political capital. A definitive win on cardrooms would strengthen the exclusivity narrative heading into any future ballot fight; a string of losses invites operators of every stripe to probe the edges of tribal rights.

There is also a doctrinal stake. The SB 549 dismissal on federal-preemption grounds — essentially holding that the Indian Gaming Regulatory Act occupies the field and a state cannot create a special tribal cause of action around it — is the kind of ruling that could echo well beyond California if it stands. Tribes elsewhere watch closely whenever a court reads IGRA to limit, rather than protect, tribal remedies; the framework is laid out in our Legal Guide.

The political dimension may ultimately decide what the courts cannot. Both sides have poured tens of millions into Sacramento over the past several election cycles — lobbying, campaign contributions, and independent expenditures — making the cardroom-tribal dispute one of the most lucrative ongoing fights in California politics for the consultants and lawmakers who service it. That spending dynamic creates its own inertia: legislators have little incentive to impose a final settlement on two industries that fund their campaigns precisely because the fight is unresolved. Observers of the state's gambling politics have noted that the longer the war runs, the more both sides pay, and the clearest winners to date have been neither tribes nor cardrooms but the political class between them.

For now, cardroom blackjack continues, the regulations sit enjoined, and the appeal clock runs. The likeliest near-term outcome is more litigation and another legislative session of trench warfare. The tribes' bet is that patience and constitutional text are on their side. The cardrooms' bet is that a workaround that has survived twenty-five years, and now pays for police departments, has become too embedded to kill. So far, the courts have declined to settle the wager.