California U.S. House District 10

The count.

Checking the election sources…

Side by side.

Raised excludes transfers between a candidate's own committees. Shares are of that total. Filings appear in order of money raised; this includes primary candidates who are no longer running.

Who spent from outside.

The largest independent spenders in this race, summed from each candidate's five largest spenders on each side.

• SIERRA CLUB INDEPENDENT ACTIONSuper PAC$10 for Mark Desaulnier

Each campaign.

• Mark DesaulnierFEC filing: Mark Desaulnier · H0CA10073 ↗

  Sitting member of Congress · Mark DeSaulnier

  In the U.S. House (CA-10) since 2015 · current term ends Jan 3, 2027

  • Recorded yea or nay on 24 of the 24 key House floor votes captured in Hugin's snapshot
  • 3 committees: Education and Workforce, Ethics (Ranking Member), Transportation and Infrastructure · 6 subcommittees
  • 84 committees reported contributions to them this cycle · 1 committee reported outside spending for or against them

  Linked to this filing by its exact FEC candidate ID (H0CA10073) in the congress-legislators roster of Oct 21, 2026. Votes are one key floor vote per bill on bills named in contractor lobbying reports (Oct 29, 2026); committee seats are the roster as of Oct 24, 2026; money counts are FEC reports for 2026 as of Oct 24, 2026. These are what Hugin's snapshots captured, not complete records, and none of them is a score or evidence of motive.

  Raised

  $722K

  Spent

  $884K

  Cash on hand

  $467K

  • Individuals 44% $320K
  • PACs & other committees 55% $399K
  • Other receipts 0.4% $2,610

  Campaign totals through Oct 14, 2026.

  Outside groups: $10 supporting · $0 opposing

  Biggest spenders supporting

  1. SIERRA CLUB INDEPENDENT ACTIONSuper PAC $10

  Largest direct PAC contributions

  1. MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERSUnion PAC · International Association Of Machinists And Aerospace Workers $10K
  2. NEA FUND FOR CHILDREN AND PUBLIC EDUCATIONUnion PAC · National Education Association $10K
  3. INTERNATIONAL BROTHERHOOD OF BOILERMAKERS CAMPAIGN ASSISTANCE FUNDUnion PAC · International Brotherhood Of Boilermakers, Iron Ship Builders, Blacksmith, Forgers & Helpe $10K

  Where the money went $508K in itemized spending

  These itemized payments cover $508K of the $884K the campaign reported spending through Oct 14, 2026. The FEC has not yet itemized the rest in its bulk file, which runs to Jun 30, 2026.

  • Advertising & outreach 14% $73K
  • Consultants & strategy 11% $55K
  • Staff & payroll 16% $83K
  • Fundraising & processing fees 28% $143K
  • Travel, meals & events 1% $4,949
  • Office, technology & overhead 10% $50K
  • Legal & compliance 9% $48K
  • Other or unclassified 10% $50K

  Largest payees

  1. THE FROST GROUP $132K
  2. SHALLMAN COMMUNICATIONS $119K
  3. GUSTO $82K
  4. CAPITOL COMPLIANCE ASSOCIATES $47K
  5. NGP VAN $45K

  Paid to individuals: $3,181, such as staff, contractors and reimbursements. People who were paid are not named here.

  Payments dated Jan 2, 2025 to Jun 30, 2026, as itemized by the principal campaign committee in FEC reports (296 entries). Every payment on FEC.gov ↗

  Grouped by each campaign's own description of the payment, so the groups are approximate. Payments of $200 or less to one payee need not be itemized, detail filed only as memo entries counts under other or unclassified, and spending by the candidate's other committees or by outside groups is not included. A payment is not evidence of a favor or wrongdoing.

• Katherine PiccininiFEC filing: Katherine Piccinini · H4CA10109 ↗

  Raised

  $21K

  Spent

  $19K

  Cash on hand

  $3,851

  Debts

  $8,630

  • Individuals 99% $21K
  • Other receipts 1% $259

  Campaign totals through Sep 30, 2026.

  No independent expenditures for or against this filing are itemized in the bulk file.

  Where the money went $15K in itemized spending

  These itemized payments cover $15K of the $19K the campaign reported spending through Sep 30, 2026. The FEC has not yet itemized the rest in its bulk file, which runs to Sep 24, 2026.

  • Advertising & outreach 39% $5,718
  • Fundraising & processing fees 0.9% $135
  • Polling, research & data 3% $502
  • Travel, meals & events 22% $3,137
  • Office, technology & overhead 22% $3,132
  • Legal & compliance 10% $1,487
  • Contributions, transfers & refunds 3% $455
  • Other or unclassified 0.1% $18

  Largest payees

  1. OFFICE DEPOT $2,703
  2. AMAZON $2,005
  3. WINCO $1,584
  4. SECRETARY OF STATE $1,471
  5. GO DADDY.COM $842

  Paid to individuals: $1,708, such as staff, contractors and reimbursements. People who were paid are not named here.

  Payments dated Feb 6, 2025 to Sep 24, 2026, as itemized by the principal campaign committee in FEC reports (193 entries). Every payment on FEC.gov ↗

  Grouped by each campaign's own description of the payment, so the groups are approximate. Payments of $200 or less to one payee need not be itemized, detail filed only as memo entries counts under other or unclassified, and spending by the candidate's other committees or by outside groups is not included. A payment is not evidence of a favor or wrongdoing.

• Angela GriffithsFEC filing: Angela Griffiths · H6CA10195 ↗

  Raised

  $12K

  Spent

  $8,594

  Cash on hand

  $3,217

  Debts

  $100

  • Individuals 99.1% $12K
  • Candidate's own money & loans 0.8% $100

  Campaign totals through Oct 14, 2026.

  No independent expenditures for or against this filing are itemized in the bulk file.

  Where the money went $7,837 in itemized spending

  • Advertising & outreach 11% $884
  • Fundraising & processing fees 4% $287
  • Travel, meals & events 7% $508
  • Office, technology & overhead 11% $823
  • Legal & compliance 26% $2,000
  • Other or unclassified 43% $3,335

  Largest payees

  1. CHASE VISA $3,335
  2. PCI.VOTE, INC $2,000
  3. INTEGRATED SOLUTIONS: POLITICAL $823
  4. SOUTHWEST AIRLINES $508
  5. FEDEX $472

  Payments dated Mar 5, 2026 to Sep 4, 2026, as itemized by the principal campaign committee in FEC reports (23 entries). Every payment on FEC.gov ↗

  Grouped by each campaign's own description of the payment, so the groups are approximate. Payments of $200 or less to one payee need not be itemized, detail filed only as memo entries counts under other or unclassified, and spending by the candidate's other committees or by outside groups is not included. A payment is not evidence of a favor or wrongdoing.

• Mitchell David MaislerFEC filing: Mitchell David Maisler · H6CA10179 ↗

  Raised

  $10K

  Spent

  $11K

  Cash on hand

  $-514

  • Individuals 21% $2,148
  • Candidate's own money & loans 79% $7,900

  Campaign totals through May 13, 2026.

  No independent expenditures for or against this filing are itemized in the bulk file.

  Where the money went $15 in itemized spending

  These itemized payments cover $15 of the $11K the campaign reported spending through May 13, 2026. The FEC has not yet itemized the rest in its bulk file, which runs to Mar 31, 2026.

  • Office, technology & overhead 100% $15

  Largest payees

  1. MITCHELL MAISLER FOR CONGRESS $15

  Payments dated Mar 31, 2026 to Mar 31, 2026, as itemized by the principal campaign committee in FEC reports (1 entries). Every payment on FEC.gov ↗

  Grouped by each campaign's own description of the payment, so the groups are approximate. Payments of $200 or less to one payee need not be itemized, detail filed only as memo entries counts under other or unclassified, and spending by the candidate's other committees or by outside groups is not included. A payment is not evidence of a favor or wrongdoing.

• Joshua HamiltonFEC filing: Joshua Hamilton · H6CA10161 ↗

  Raised

  $7,486

  Spent

  $6,921

  Cash on hand

  $565

  • Individuals 100% $7,486

  Campaign totals through Sep 30, 2026.

  No independent expenditures for or against this filing are itemized in the bulk file.

  Where the money went $6,921 in itemized spending

  • Advertising & outreach 27% $1,887
  • Fundraising & processing fees 4% $292
  • Polling, research & data 52% $3,608
  • Office, technology & overhead 8% $544
  • Legal & compliance 8% $570
  • Other or unclassified 0.3% $20

  Largest payees

  1. POLITICAL DATA INTELLIGENCE, LLC $3,608
  2. BUILD A SIGN, LLC $1,293
  3. INTEGRATED SOLUTIONS, POLITICAL, LLC $570
  4. HAMILTON FOR CONGRESS $515
  5. NEWSMATICS INC. DBA EIN PRESSWIRE $499

  Payments dated Feb 27, 2026 to Sep 29, 2026, as itemized by the principal campaign committee in FEC reports (22 entries). Every payment on FEC.gov ↗

  Grouped by each campaign's own description of the payment, so the groups are approximate. Payments of $200 or less to one payee need not be itemized, detail filed only as memo entries counts under other or unclassified, and spending by the candidate's other committees or by outside groups is not included. A payment is not evidence of a favor or wrongdoing.

Also registered for this seat, with no campaign summary or outside spending in the bulk file: Calvin Nguyen, Jeffrey Frese.