Trader consensus on Polymarket heavily favors U.S. Rep. Eric Swalwell (D-CA) at 63.5% implied probability to win the 2026 California gubernatorial election, an open contest due to Gov. Gavin Newsom's term limits, buoyed by Swalwell's Bay Area base, congressional tenure, and national media profile from impeachment inquiries. San Jose Mayor Matt Mahan (7.5%) gains from local executive success and progressive credentials, while GOP consultant Steve Hilton (6.3%) and billionaire Tom Steyer (6.2%) draw support via anti-establishment appeal and self-funding prospects, respectively. Recent straw polls underscore Democratic dominance in the primary, with no formal announcements from frontrunners like Katie Porter or Eleni Kounalakis; Q4 fundraising disclosures could catalyze shifts ahead of 2026 filing deadlines.
Experimental AI-generated summary referencing Polymarket data · UpdatedCalifornia Governor Election Winner
California Governor Election Winner
Eric Swalwell 64%
Matt Mahan 8%
Steve Hilton 6.3%
Tom Steyer 6.1%
$3,425,140 Vol.
$3,425,140 Vol.
Eric Swalwell
64%
Matt Mahan
8%
Steve Hilton
6%
Tom Steyer
6%
Elaine Culotti
4%
Chad Bianco
3%
Katie Porter
2%
Xavier Becerra
<1%
Tony Thurmond
<1%
Kamala Harris
<1%
Rick Caruso
<1%
Stephen Cloobeck
<1%
Betty Yee
<1%
Kyle Langford
<1%
Eleni Kounalakis
<1%
Leo Zacky
<1%
Alex Padilla
<1%
Antonio Villaraigosa
<1%
Butch Ware
<1%
Toni Atkins
<1%
Daniel Mercuri
<1%
Michael Younger
<1%
Nicole Shanahan
<1%
Eric Swalwell 64%
Matt Mahan 8%
Steve Hilton 6.3%
Tom Steyer 6.1%
$3,425,140 Vol.
$3,425,140 Vol.
Eric Swalwell
64%
Matt Mahan
8%
Steve Hilton
6%
Tom Steyer
6%
Elaine Culotti
4%
Chad Bianco
3%
Katie Porter
2%
Xavier Becerra
<1%
Tony Thurmond
<1%
Kamala Harris
<1%
Rick Caruso
<1%
Stephen Cloobeck
<1%
Betty Yee
<1%
Kyle Langford
<1%
Eleni Kounalakis
<1%
Leo Zacky
<1%
Alex Padilla
<1%
Antonio Villaraigosa
<1%
Butch Ware
<1%
Toni Atkins
<1%
Daniel Mercuri
<1%
Michael Younger
<1%
Nicole Shanahan
<1%
If the results of the election are not confirmed by July 31, 2027, this market will resolve to "Other".
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on official certification.
Market Opened: Oct 9, 2025, 7:21 PM ET
Resolver
0x2F5e3684c...Resolver
0x2F5e3684c...Trader consensus on Polymarket heavily favors U.S. Rep. Eric Swalwell (D-CA) at 63.5% implied probability to win the 2026 California gubernatorial election, an open contest due to Gov. Gavin Newsom's term limits, buoyed by Swalwell's Bay Area base, congressional tenure, and national media profile from impeachment inquiries. San Jose Mayor Matt Mahan (7.5%) gains from local executive success and progressive credentials, while GOP consultant Steve Hilton (6.3%) and billionaire Tom Steyer (6.2%) draw support via anti-establishment appeal and self-funding prospects, respectively. Recent straw polls underscore Democratic dominance in the primary, with no formal announcements from frontrunners like Katie Porter or Eleni Kounalakis; Q4 fundraising disclosures could catalyze shifts ahead of 2026 filing deadlines.
Experimental AI-generated summary referencing Polymarket data · Updated



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