Mark Desaulnier
DIncumbentFEC H0CA10073
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Raised this cycle$491K
Cash on hand: $656K
All California races
2026 race
CA-10 — U.S. House
5 active candidates on file with the FEC. Incumbent: Mark Desaulnier.
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Primary · Tuesday, June 2, 2026
Called by audit: web-verified
Top-two primary — Mark Desaulnier and Jeffrey Frese advanced to the general election.
- DMark Desaulnier· inc.Advanced to general49.3%
- RJeffrey FreseAdvanced to general14.8%
- RKatherine PiccininiDefeated11.0%
- DJoshua HamiltonDefeated
- DMitchell David MaislerDefeated
- RAngela GriffithsDefeated
Election day
135days
Tuesday, November 3, 2026
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Disclosed money in race
$533K
Candidate + outside spending. See finance breakdown below.
Incumbent
Currently in office
Challengers
Sorted by fundraising
Katherine Piccinini
RChallengerFEC H4CA10109
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Raised this cycle$17K
Cash on hand: $6K
Mitchell David Maisler
DChallengerFEC H6CA10179
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Raised this cycle$10K
Cash on hand: $-499
Angela Griffiths
RChallengerFEC H6CA10195
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Raised this cycle$9K
Cash on hand: $7K
Joshua Hamilton
DChallengerFEC H6CA10161
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Raised this cycle$6K
Cash on hand: $6K
Money in the race
Finance breakdown
Disclosed funding shaping this race — both the money candidates raise themselves and the outside spending dropped by independent groups. Issue-ad spending by 501(c)(4) groups is excluded; the FEC doesn't require disclosure of it. See the note below for details.
Total disclosed
$533K
Candidate fundraising + independent expenditures (FEC).
Candidate-direct (Schedule A)
$533K
Raised by candidate committees themselves.
Outside spending (Schedule E)
$0
No outside spending reported yet.
| Candidate | Raised directly | Outside for | Outside against | Net in corner |
|---|---|---|---|---|
Mark Desaulnier(D)incumbent | $491K | — | — | $491K |
Katherine Piccinini(R) | $17K | — | — | $17K |
Mitchell David Maisler(D) | $10K | — | — | $10K |
Angela Griffiths(R) | $9K | — | — | $9K |
Joshua Hamilton(D) | $6K | — | — | $6K |
What's counted, what isn't
Candidate-direct is each campaign's reported receipts on FEC Schedule A — individual contributions plus PAC contributions to the candidate's own committee — through the most recent filing.
Outside spending is independent expenditures on FEC Schedule E: money spent by PACs, super PACs, and party committees for or against a candidate, without legal coordination with the campaign. The committees listed under each candidate are the largest disclosed spenders on either side.
In-state vs out-of-state covers only itemized individual contributions — donations over $200, which are the only ones that carry a contributor address at the FEC. Sub-$200 unitemized donations (often a large share for grassroots campaigns) have no geography on file and are excluded, as is PAC money. So the percentages describe where a candidate's itemized individual money comes from, not where every dollar raised comes from.
Not counted: 501(c)(4) "social welfare" organizations run issue ads that frequently mention candidates by name but aren't classified as express advocacy under FEC rules — they file no Schedule E and don't appear in this breakdown. Press reporting on a race may cite figures that include this dark-money spending; ours doesn't.
About this race page
Candidate roster is sourced from the FEC's active-candidate list for the 2026 cycle. Fundraising totals reflect committee filings through the last reporting period.
Alignment % compares the candidate's extracted policy positions against your quiz answers. Positions are pulled from the candidate's campaign issues page by AI; we save the source quote for each position so you can verify the extraction. Candidates without a campaign issues page show position data pending — we're working through the roster and re-checking stale extractions every 90 days.
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