California's tribal gaming leadership has put a firm date back on the calendar. Speaking at the National Council of Legislators from Gaming States summer meeting in San Diego on July 12, California Nations Indian Gaming Association Chair James Siva confirmed that the state's tribes remain committed to a 2028 ballot initiative that would bring tribally operated online sports wagering to California.
"Yes, yes, we're still very much looking at 2028 as the date that tribes are preparing to move forward with a tribally led initiative for an online sports betting market," Siva told the panel, which was moderated by Connecticut Representative Bill Buckbee and Oklahoma Representative Steve Bashore. Cahuilla Band of Indians Chair Erica Schenk and Yuhaaviatam of San Manuel Nation Vice Chair Johnny Hernandez Jr. joined Siva on stage.
The 2028 Message From San Diego
The confirmation matters because the timeline has been an open question since voters rejected two competing measures in 2022. Proposition 26, which would have brought retail wagering to tribal casinos, and Proposition 27, backed by national online operators, both failed by wide margins. Since then tribal leaders have repeatedly said they would only return to the ballot on their own terms, with a framework designed inside Indian Country rather than imposed from outside.
That framework now has a shape. According to Siva, the initiative under development is tribally led from the ground up, and the four years since 2022 have been spent building consensus among tribes rather than rushing back to voters.
Equity Is the Organizing Principle
California is home to 109 federally recognized tribes, and 73 of them operate limited gaming or none at all. The 2028 framework is being designed so that every tribe shares in the upside of a statewide online market, not just the largest casino operators near major population centers.
"We've really focused on equity amongst tribes, trying to make sure that no tribe gets left behind as we expand gaming," Siva said. Leaders on the panel contrasted the approach with Arizona's model, which they argued created disparities between gaming and non-gaming tribes. In the California plan, revenue sharing would reach tribes that never see a sportsbook customer in person.
Prediction Markets Change the Math
The urgency behind the initiative has a new driver. Federally regulated prediction market platforms now offer sports event contracts to Californians under federal commodities oversight, outside the state's tribal gaming framework. Siva called the platforms "the largest, most impending threat we've faced since the creation of this industry," and tribal analysts estimate they are already siphoning roughly 5 percent of tribal gaming revenue.
Hernandez put it in starker terms, telling lawmakers that the platforms "take the food literally out of our tribal members' mouths." With California tribes generating roughly 13 billion dollars a year, more than a quarter of all tribal gaming revenue in the United States and about a tenth of the country's combined commercial and tribal market, even single digit percentage losses are enormous. Our coverage of the tribes' court fight with Kalshi explains how that battle reached federal court.
What a 2028 Measure Could Look Like
Details will be finalized over the next year, but the outline discussed in San Diego points to a statewide online sports wagering market operated by tribes, with participation and revenue sharing open to all 109 tribes, stronger consumer protections than offshore alternatives, and a compact based structure that preserves tribal sovereignty. Qualifying for the ballot will require signature gathering through 2027 and a campaign that avoids the crowded, confusing dynamic that sank both 2022 measures.
What It Means for California Bettors
Nothing changes overnight. State regulated online sportsbooks remain unavailable in California, and the earliest a tribal initiative could take effect is 2029 even if voters approve it in November 2028. In the meantime, Californians who want to compare offshore options can review our guide to the best California sports betting sites, and the California Nations Indian Gaming Association publishes updates on the initiative as it develops. Our earlier report on the tribes' 2028 target covers how the strategy first came together this spring.
