California's 'Republican Primary' 2026: Who Takes the Second Top-Two Slot?
California doesn't have a Republican primary — here's how the real top-two system works and who's favored to claim the second general-election slot.
- There is no separate Republican primary in California — all candidates run on one nonpartisan ballot June 2, 2026.
- The top two vote-getters, regardless of party, advance to the November 3 general election.
- Steve Hilton and Chad Bianco are the two leading Republican-aligned candidates competing for that second slot.
- If Republican votes split too evenly between Hilton and Bianco, a second Democrat could theoretically leapfrog both into the top two.
- Xavier Becerra is expected to easily claim the first slot as the Democratic frontrunner.
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Search for a 'California Republican governor primary' in 2026 and you'll come up empty — that's not a mistake. California abolished separate party primaries for statewide office years ago in favor of a top-two nonpartisan system. This guide explains what that means for prediction markets and breaks down the real question traders are pricing: who claims the second slot in November.
Why There's No Republican Primary
Under California's top-two primary, adopted via ballot measure, every candidate for governor appears on a single ballot on June 2, 2026 regardless of party affiliation. Voters of any registration can vote for any candidate. The top two finishers — whether they're both Democrats, both Republicans, or one of each — move on to the November 3, 2026 general election.
The Real Question: Who Gets the Second Slot?
With Xavier Becerra widely expected to claim the first of the two general-election slots as the Democratic frontrunner, the more competitive market question is who takes the second spot. That contest is effectively a three-way tension between the two leading Republican-aligned candidates and the possibility of a second Democrat sneaking through.
Steve Hilton
A former Fox News host and political commentator, Hilton has built a media-driven campaign emphasizing name recognition built over years of television appearances.
Chad Bianco
The Riverside County Sheriff, Bianco has leaned on a law-enforcement background and grassroots conservative support, particularly in inland and Southern California counties.
The Second-Democrat Scenario
Because the Democratic field is so crowded — including Katie Porter, Antonio Villaraigosa, Eleni Kounalakis, Toni Atkins, Betty Yee, and Tony Thurmond — there's a non-trivial scenario where Republican votes concentrate enough behind one of Hilton or Bianco that a strong second-place Democrat like Porter or Villaraigosa edges out the weaker of the two Republicans for the runner-up slot.
| Candidate | Party lane | Key strength |
|---|---|---|
| Xavier Becerra | Democrat | Frontrunner, statewide name ID |
| Katie Porter | Democrat | National fundraising base |
| Antonio Villaraigosa | Democrat | Prior statewide campaign experience |
| Steve Hilton | Republican | Media name recognition |
| Chad Bianco | Republican | Law-enforcement base, inland CA support |
How Markets Price This
Kalshi and Polymarket both offer contracts tied to which candidates advance out of the June primary, effectively letting traders bet on the 'second slot' question directly. Hilton and Bianco currently trade as the leading non-Democrat options, but it's worth watching the spread between them and the top Democratic also-rans.
How to Trade the Second-Slot Market
- 1.Open the California governor market on Kalshi or Polymarket.
- 2.Look for the primary-advancement contracts rather than a 'party nomination' contract — California doesn't have the latter.
- 3.Compare pricing on Hilton vs. Bianco vs. the leading second-tier Democrats.
- 4.Track regional polling — Bianco tends to poll stronger inland, Hilton stronger with a broader statewide conservative base.
- 5.Watch for any Republican consolidation, such as an endorsement that pushes GOP-aligned voters behind one candidate — that would sharply move these odds.
Bottom Line
There's no California Republican primary to bet on in the traditional sense — but the underlying question of which Republican, Hilton or Bianco, ultimately claims a general-election slot (or whether a second Democrat steals it instead) is one of the most genuinely uncertain markets in this cycle.
Last reviewed by Catie Di Stefano on August 7, 2026. We re-verify market prices, polling, and citations on every update.
Frequently Asked Questions
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Sources & references
- 1.Commodity Futures Trading Commission — Event Contracts — CFTC.gov
- 2.California Secretary of State — Elections — sos.ca.gov
- 3.Public Policy Institute of California — Statewide Survey — PPIC.org
- 4.UC Berkeley Institute of Governmental Studies Poll — IGS, UC Berkeley
- 5.Los Angeles Times — California politics coverage — Los Angeles Times
- 6.CalMatters — Nonpartisan California news — CalMatters
- 7.Polymarket and the rise of prediction markets — Associated Press
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Catie Di Stefano has spent 15 years working with online gambling across some of the most regulated and competitive gambling markets in the world.
Starting at Betsson Group in Malta in 2011, she has in recent years worked her way through VIP management, CRM, gamification and marketing leadership across European and North American operations. Catie was a licensed consultancy for Hard Rock Casino in New Jersey, where she held a DGE vendor license and owned the execution of the online CRM program from launch day in 2018.