The race for California's next governor is taking shape, but prediction markets offer conflicting signals on whether Democratic megadonor Tom Steyer will secure a spot in the general election. On Polymarket, where over $522,000 has been wagered, traders assign Steyer a mere 2% probability of advancing from the primary—a stark assessment that suggests the field is crowded or that his past presidential bid left little appetite for a second statewide run. In contrast, Manifold Markets, with 13 participants, shows a 47% chance, indicating a more optimistic view among a smaller group of forecasters. The average probability across both platforms stands at 24.5%, but the 45-point spread between them underscores the lack of consensus. No specific external trigger was identified in today's news flow to explain the divergence, leaving analysts to speculate that the disparity may stem from differing methodologies or participant biases. Steyer, who spent heavily on climate advocacy and ran for president in 2020, has not formally announced a gubernatorial bid, adding to the uncertainty. The primary is set for June 2, 2026, and other candidates, including potential frontrunners like Gavin Newsom (term-limited) or Kamala Harris (if she returns to California), could reshape the race.
Tom Steyer Expected to Fall Short in California Governor Primary, Markets Show (53% probability)
Sunday, June 7, 2026Resolves: June 2, 2026
Market Consensus
Kalshi
—
Polymarket
2%
25%
Average
Average
$522K
Volume
Volume
45%
Spread
Spread
Prediction markets give billionaire Tom Steyer a mixed outlook for advancing from the 2026 California governor primary, with Polymarket traders seeing only a 2% chance while Manifold forecasters place odds at 47%, reflecting deep uncertainty about his candidacy.
Confidence Note: Data is limited to two platforms with significant volume disparity; Polymarket's $522K provides more liquidity than Manifold's 13 participants, but the wide spread suggests genuine uncertainty.
