Mike Thompson
DIncumbentFEC H8CA01109
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Raised this cycle$3.0M
Cash on hand: $2.6M
All California races
2026 race
CA-04 — U.S. House
7 active candidates on file with the FEC. Incumbent: Mike Thompson.
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Election day
135days
Tuesday, November 3, 2026
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Disclosed money in race
$6.7M
Candidate + outside spending. See finance breakdown below.
Incumbent
Currently in office
Challengers
Sorted by fundraising
Eric Jones
DChallengerFEC H6CA04222
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Raised this cycle$3.2M
Cash on hand: $1.5M
Raymond Riehle
RChallengerFEC H4CA06156
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Raised this cycle$109K
Cash on hand: $5K
Laurie John MacKenzie
RChallengerFEC H6CA04198
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Raised this cycle$14K
Cash on hand: $9K
Sharon Brown
RChallengerFEC H6CA04206
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Raised this cycle$7K
Cash on hand: $2K
Mandy Ghusar
RChallengerFEC H6CA08223
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Raised this cycle$7K
Cash on hand: $1K
Trevor Merrell
DChallengerFEC H6CA04230
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Raised this cycle$6K
Cash on hand: $-24
Local signal
Early read on CA-04 — U.S. House
A directional read on where this seat is trending, from the signals we have so far. This is an early scaffold — more inputs light up as coverage and constituent activity accrue.
Coverage tone · leans negative
Recent news coverage of Mike Thompson over the last 90 days.
0 positive9 neutral1 negative
10 articles · AI-assessed sentiment toward the rep. A media signal, not a poll of the district.
Constituent stakes
No one here has staked a position on a tracked vote yet. As neighbors weigh in on /pressure campaigns, the district's lean will show up here.
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
$6.7M
Candidate fundraising + independent expenditures (FEC).
Candidate-direct (Schedule A)
$6.4M
Raised by candidate committees themselves.
Outside spending (Schedule E)
$309K
$10 for · $309K against
| Candidate | Raised directly | Outside for | Outside against | Net in corner |
|---|---|---|---|---|
Eric Jones(D) | $3.2M | — | — | $3.2M |
Mike Thompson(D)incumbent + SIERRA CLUB INDEPENDENT ACTION $10 − NEW LEADERSHIP NOW $309K | $3.0M | $10 | $309K | $2.7M |
Raymond Riehle(R) | $109K | — | — | $109K |
Laurie John MacKenzie(R) | $14K | — | — | $14K |
Sharon Brown(R) | $7K | — | — | $7K |
Mandy Ghusar(R) | $7K | — | — | $7K |
Trevor Merrell(D) | $6K | — | — | $6K |
Where the money comes from
In-state vs out-of-state
Share of each candidate's itemized individual contributions from donors inside CA versus the rest of the country. Excludes sub-$200 unitemized donations (no geography on file) and PAC money — see note below.
Eric Jones(D)74% in-state · $2.9M itemized
$2.1M in-state$749K out-of-state
Mike Thompson(D)79% in-state · $1.8M itemized
$1.4M in-state$376K out-of-state
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.
Recent coverage
In the news
Eric Jones
- More fall House matchups set in CaliforniaRoll CallJun 10
- California's redrawn US House map gets its first test as Democrats hope to counter GOP redistrictingNewsdayJun 3
- Voters select candidates in key House districts that could decide the majorityNBC NewsJun 3
- At the Races: Going for the Golden StateRoll CallJun 2
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.
News coverage is from the GDELT 2.0 global news feed, filtered to a curated list of national, political, and regional outlets.