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Races · house · 2026 · California · general · Democratic primary
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PhasesShowing the Democratic primary. Other views:general election·primary
Democratic primary · June 2, 2026

California house Democratic primary

Field of 5 Democratic candidates competing for the party's nomination. Winner advances to the general election on November 3, 2026.

Primary passed· 0 polls
Richard Pan 43% to win the Democratic nominationupdated 11h ago · primary-struct-v1
Richard Pan · 43%Lauren Babb Tomlinson · 28%Thien Ho · 13%Martha Guerrero · 12%
Caution · early warning
Editorial raters moved while polling has gone quiet

The last rating change here was 22d ago, but only 0 polls have landed in the last 60 days. When raters move and pollsters don't, the rating shift may be running ahead of the data. Watch for a late-cycle correction in either direction.

Where this race stands
Verified

Showing the Democratic primary view. General-election ratings, forecasts, and tipping-point odds aren't meaningful for a single-party primary — switch to the general election view for those.

How confident are we?0 = certain · 100 = max uncertain
Combined
95
High uncertainty
Main driver: wide vote-share CI (26.7pp).
Forecast CI width89
26.7pp 80% interval
Polling sparsity100
0 polls in 60d · target ≥ 8

Forecast · Democratic primary

primary-struct-v1 · medium confidence · 2 polls + fundamentals
1Richard PanRichard Juien-Dah Pan is an American Democratic politician and physician who served in the California State Senate from 2014 to 2022, repres…17.4% 4–3143% win
2Lauren Babb TomlinsonLauren Babb Tomlinson ( Democratic Party ) ran for election to the U.S. House to represent California's 6th Congressional District . She los…13.9% 1–2728% win
3Thien HoThis House Is Not for Sale is the fourteenth studio album by American rock band Bon Jovi. It was released on November 4, 2016, by Island Rec…8.1% 0–2113% win
4Martha GuerreroMartha Guerrero ( Democratic Party ) ran for election to the U.S. House to represent California's 6th Congressional District . She lost in t…7.6% 0–2112% win
5Tyler VandenbergTyler Vandenberg ( Democratic Party ) ran for election to the U.S. House to represent California's 6th Congressional District . He lost in t…1.8% 0–154% win

Polling average

048121620PAN 18.0HO 12.0TOMLINSON 11.0GUERRERO 9.0VANDENBERG 2.0MAY '26MAY '26MAY '26
Weighted, plus each pollster's measured bias subtracted before averaging.

All polls · 0 results

Democratic primary polls

No polls have been published for this primary yet. When pollsters start covering the race, individual polls will be listed here with sample size, lean, and trust signals.

Endorsements · Democratic primary · 51 total

Source · Wikipedia · 1 candidate with no endorsements yet
25
17
6
Lauren Babb Tomlinson · 25Richard Pan · 17Thien Ho · 6Martha Guerrero · 3
DLauren Babb Tomlinson25 endorsers
Most notable · David Hogg · former vice chair of the Democratic National Committee (2025)
Organizations13
Elected officials12
Federal 11State 0Local 0
DRichard Pan17 endorsers
Most notable · Dave Min · CA-47 (2025–present)
Organizations10
Elected officials6
Federal 6State 0Local 0
Newspapers1
DThien Ho6 endorsers
Most notable · Adam Gray · CA-13 (2025–present)
Elected officials5
Federal 2State 2Local 1
Organizations1
DMartha Guerrero3 endorsers
Most notable · Richard Polanco · former majority leader of the California State Senate (1998–2002) from the 22nd district (1994–2002)
Elected officials2
Federal 0State 1Local 1
Organizations1
DTyler Vandenberg0 endorsers
no endorsers yet
No endorsements found yet. Endorsements come from the candidate's Wikipedia article (when one exists) and update with the daily scrape.

Money in this primary

FEC · per-candidate committees · last filing 2026-06-02
Richard PanH6CA03158 ↗
Raised
$688K
Cash on hand
$118K
No industry data.
Lauren Babb TomlinsonH6CA06276 ↗
Raised
$472K
Cash on hand
$108K
No industry data.
Thien HoOWN COMMITTEE
No FEC committee filing yet.
No industry data.

In the news

10 shown · last 30d · Google News
News volume · 30d
10 articles · building history
Net favorability
+0.40
Coverage lean (D−R) · shift +0.17 wk
Coverage tilt
D 40%
Neutral 60%
40% of outlets rated · by editorial lean
Verification trail
Polls verified0 / 0deterministic
Polls flaggednone
Markets ingested1 platformupdated 11h ago
FEC filingssyncedcommittee + IE · 2026-06-02
Endorsements51 totalWikipedia scrape
News coverage10 / 30dGoogle News
Method · bounds + percentage totals + date-order checks