Race2026 cyclePrimary day 2 Jun 2026Updated

Cite this page

DonorAlpha, “California 18th District primary 2026”, https://donoralpha.com/races/california-18th-district-primary-2026?e=c2026, updated .

California 18th District primary 2026

No. 255 of 527 House races in the 2026 cycle

The short version

In the 2026 California 18th District primary, 4 outside groups spent $109K: $109K supporting Zoe Lofgren (D).

$109K

outside money

supporting Zoe Lofgren (D)
$109K

Outside money supporting and opposing each candidate

Both sides on one scale
← OpposingSupporting →
  • Zoe Lofgren Democrat

    $109K

    $109K supporting Zoe Lofgren

This seat, every election

California 18th District

$109K

outside money in the 2026 cycle

  • California 18th District primary 2026This page$109Koutside money
The long version

The candidates

What each candidate’s own campaign raised, beside what outside groups spent supporting and opposing them.

  • Zoe Lofgren

    Democrat

    Own campaign raised
    $1.7M
    Outside money supporting
    $109K
    Lofgren for Congress
  • Campaign money to 30 Jun 2026

Week by week

Outside money each week, supporting and opposing the candidates, all candidates combined.

Week of 25 May 2026

Supporting $54,637

Supporting candidatesOpposing candidates

The groups on each side

The biggest outside groups in this race, by what they spent supporting or opposing each candidate.

Spent supporting a candidate

  1. Protect Progresssupporting Zoe Lofgren$109K
  2. Courage California Super PACsupporting Zoe Lofgren$156
  3. Sierra Club Independent Actionsupporting Zoe Lofgren$10

Who’s connected to whom

The groups that spent supporting or opposing the candidates.

Their biggest giversGroups that spentCandidatesProtect Progress spent $109K supporting Zoe Lofgren · $109KCourage California Super PAC spent $156 supporting Zoe Lofgren · $156We Vote - Nosotros Votamos - PPAMM Committee spent $13 supporting Zoe Lofgren · $13Sierra Club Independent Action spent $10 supporting Zoe Lofgren · $10Fairshake gave $33.0M to Protect Progress · $33.0MRipple Labs gave $250K to Protect Progress · $250KPlanned Parenthood Advocates Mar Monte gave $5,146 to We Vote - Nosotros Votamos - PPAMM Committee · $5,146Alma Soul gave $500 to We Vote - Nosotros Votamos - PPAMM Committee · $500FairshakeFairshakeCompany or group · $33.0MRipple LabsRipple LabsCompany or group · $250KPlanned Parenthood AdvocatesMar MontePlanned Parenthood Advocates Mar MonteCompany or group · $5,146Alma SoulAlma SoulCompany or group · $500Protect ProgressProtect ProgressGroup · $109KCourage California Super PACCourage California Super PACGroup · $156We Vote - Nosotros Votamos -PPAMM CommitteeWe Vote - Nosotros Votamos - PPAMM CommitteeGroup · $13Sierra Club IndependentActionSierra Club Independent ActionGroup · $10Zoe LofgrenZoe LofgrenCandidate · $109K
  • Protect Progress spent supporting Zoe Lofgren · $109K
  • Courage California Super PAC spent supporting Zoe Lofgren · $156
  • We Vote - Nosotros Votamos - PPAMM Committee spent supporting Zoe Lofgren · $13
  • Sierra Club Independent Action spent supporting Zoe Lofgren · $10
  • Fairshake gave to Protect Progress · $33.0M
  • Ripple Labs gave to Protect Progress · $250K
  • Planned Parenthood Advocates Mar Monte gave to We Vote - Nosotros Votamos - PPAMM Committee · $5,146
  • Alma Soul gave to We Vote - Nosotros Votamos - PPAMM Committee · $500
GaveSpent supportingSpent opposingSwipe to see the whole map.

Group

Protect Progress

  • Protect Progress spent $109K supporting Zoe Lofgren$109K
  • Fairshake gave $33.0M to Protect Progress$33.0M
  • Ripple Labs gave $250K to Protect Progress$250K
For reporters, researchers and the professionally curious

Go deeper

The paperwork behind this race, all of it. Free with an email sign-in.

The paperwork

Sign in free with your email

It’s free. We only want your email address. We’ll never ask you to chip in $5.