Darrell Issa
RIncumbentFEC H0CA48024
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Raised this cycle$1.8M
Cash on hand: $2.8M
All California races
2026 race
CA-48 — U.S. House
12 active candidates on file with the FEC. Incumbent: Darrell Issa.
Read the record. Not the rhetoric.
See where these candidates stand — and who's funding them.
DeepSyte tracks the money and the record in every race against the issues you care about — not party, not press releases. Take the 2-minute values quiz to see your alignment.
Primary · Tuesday, June 2, 2026
Called by audit: web-verified
Top-two primary — Jim Desmond and Marni Von Wilpert advanced to the general election.
- RJim DesmondAdvanced to general41.4%
- DMarni Von WilpertAdvanced to general19.5%
- DAmmar Campa-NajjarDefeated9.7%
Currently held by
Darrell Issa (R) — not seeking re-election in 2026. They've publicly announced their retirement; their committee is still on the FEC's 2026 roster for routine compliance, but this is effectively an open seat.
Election day
135days
Tuesday, November 3, 2026
Make sure you can vote
Disclosed money in race
$8.5M
Candidate + outside spending. See finance breakdown below.
Incumbent
Currently in office
Challengers
Sorted by fundraising
Brandon Riker
DChallengerFEC H6CA41265
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Raised this cycle$1.9M
Cash on hand: $1.1M
Jim Desmond
RChallengerFEC H6CA49128
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Raised this cycle$1.7M
Cash on hand: $1.1M
Ammar Campa-Najjar
DChallengerFEC H8CA50098
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Raised this cycle$1.1M
Cash on hand: $456K
Marni Von Wilpert
DChallengerFEC H6CA48310
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Raised this cycle$1.0M
Cash on hand: $546K
Anuj Dixit
DChallengerFEC H6CA41281
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Raised this cycle$466K
Cash on hand: $176K
Abel Chavez
DChallengerFEC H6CA41224
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Raised this cycle$290K
Cash on hand: $18K
Ferguson Porter
DChallengerFEC H6CA41232
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Raised this cycle$62K
Cash on hand: $22K
Marc Iannarino
DChallengerFEC H6CA48336
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Raised this cycle$43K
Cash on hand: $3K
Curtis Morrison
DChallengerFEC H6CA48260
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Raised this cycle$36K
Cash on hand: $0
Corinna Contreras
DChallengerFEC H6CA48344
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Raised this cycle$24K
Cash on hand: $2K
Suzanne Marie Till
DChallengerFEC H6CA48286
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Raised this cycle$7K
Cash on hand: $0
Local signal
Early read on CA-48 — 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 positive
Recent news coverage of Darrell Issa over the last 90 days.
3 positive12 neutral2 negative
17 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
$8.5M
Candidate fundraising + independent expenditures (FEC).
Candidate-direct (Schedule A)
$8.5M
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 |
|---|---|---|---|---|
Brandon Riker(D) | $1.9M | — | — | $1.9M |
Darrell Issa(R)incumbent | $1.8M | — | — | $1.8M |
Jim Desmond(R) | $1.7M | — | — | $1.7M |
Ammar Campa-Najjar(D) | $1.1M | — | — | $1.1M |
Marni Von Wilpert(D) | $1.0M | — | — | $1.0M |
Anuj Dixit(D) | $466K | — | — | $466K |
Abel Chavez(D) | $290K | — | — | $290K |
Ferguson Porter(D) | $62K | — | — | $62K |
Marc Iannarino(D) | $43K | — | — | $43K |
Curtis Morrison(D) | $36K | — | — | $36K |
Corinna Contreras(D) | $24K | — | — | $24K |
Suzanne Marie Till(D) | $7K | — | — | $7K |
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.
Brandon Riker(D)64% in-state · $708K itemized
$454K in-state$254K out-of-state
Darrell Issa(R)65% in-state · $1.2M itemized
$760K in-state$409K out-of-state
Jim Desmond(R)95% in-state · $1.6M itemized
$1.6M in-state$82K out-of-state
Ammar Campa-Najjar(D)79% in-state · $609K itemized
$480K in-state$130K out-of-state
Marni Von Wilpert(D)73% in-state · $887K itemized
$644K in-state$243K out-of-state
Corinna Contreras(D)100% in-state · $12K itemized
$12K in-state$0 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.
Where they stand
Issue-by-issue comparison
Positions extracted from each candidate's campaign issues page by AI. Contested rows — where candidates disagree with each other — appear first.
| Statement | Riker | Issa | Desmond | Campa-najjar | Von wilpert | Dixit | Chavez | Porter | Iannarino | Morrison | Contreras | Till | You |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Economy The federal minimum wage should be raised. | — |
SupportsOpposesNo public positionRinged = confirmed by the campaign
Recent coverage
In the news
Brandon Riker
Jim Desmond
- California redrew its House map to give Democrats an edge. HereCBS NewsJun 11
- Democrat Randy Villegas advances in newly redrawn California congressional districtNewsdayJun 10
- Matsui advances to November ballot in reelection bid for California congressional seatThe Seattle TimesJun 6
- Matsui advances to November ballot in reelection bid for California congressional seatNewsdayJun 6
Ammar Campa-Najjar
- How California's vulnerable Republicans fared during primaryWashington ExaminerJun 3
- 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.