Cyngal Poll: Vin Kruttiventi In a Strong Position; Leads GOP Field in CA-13 Primary

DATE: Wednesday, June 25, 2025

TO: Interested Parties

FROM: Brent Buchanan, President & Founder, Cygnal

RE: Survey of n310 Likely 2026 Jungle Primary Election Voters

Kruttiventi holds nearly 10-point lead among GOP voters.

  • Kruttiventi not only performs the strongest among the GOP field overall but also has a commanding +9 lead with GOP voters likely to turn out in next year’s jungle primary.

  • Kruttiventi takes 29% of the vote of likely GOP voters, followed by David Giglio with 20% and Javier Lopez with 11%.

The Trump base drives Kruttiventi’s lead.

  • Kruttiventi performs best with the President’s base. Among those who identify as a “Trump Republican” Kruttiventi’s lead over Giglio expands to +15 (34-19; Lopez 9).

  • Among the hardest-core Trump voters – those who say they are Much More of a Trump Republican – Kruttiventi’s advantage balloons to 2:1 (39-19; Lopez 9).

  • The race is tighter with the smaller group of self-identifying Traditional Republicans (those generally less supportive of President Trump and his policies). This group is tied between Kruttiventi and Giglio at 21% with

Bottom Line: Vin Kruttiventi is by far the strongest Republican candidate

Against a weak Adam Gray (35% primary ballot share and 32% re-elect). He is buoyed by the Trump base, which is the voter group who will decide which Republican challenges Gray in the general election. Methodology: This probabilistic survey was conducted June 12 – 13, 2025, with n310 likely 2026 jungle primary election voters. It has a margin of error of ±5.53%. Known registered were interviewed via text-toweb survey.. This survey was weighted to a 2026 jungle primary election audience.