California’s 48th District

Outside groups have reported $11,136,631 in independent spending in this race: $3,392,416 for the general election and $7,744,214 in the primaries. The biggest spender so far is HMP, at $2.7M.

  • General election
    $3.4M
  • Primaries
    $7.7M
  • Late reports
    $4.3M
  • Last 14 days
    $2.4M

On the November ballot · campaign money and outside spending around each

  • Outside spending for
  • Outside spending against

Jim Desmond (R)

Open seat

Raised
$2.3M
Spent
$1.0M
Cash on hand
$1.2M

Campaign reports through June 30, 2026.

Outside spending, general election

  • For$84K
  • Against$2.9M

Primary and other: $66K for, $338K against.

Marni von Wilpert (D)

Open seat

Raised
$2.2M
Spent
$1.3M
Cash on hand
$825K

Campaign reports through June 30, 2026.

Outside spending, general election

  • For$254K
  • Against$123K

Primary and other: $2.2M for, $1.4M against.

November ballot as listed by this source on Oct. 1, 2026. Party letters: D Democrat, R Republican, I independent, L Libertarian, G Green.

Not on the November ballot · lost a primary, withdrew or didn’t run, with the money spent around them

Brandon Riker (D)

Raised
$2.3M
Spent
$2.2M
Cash on hand
$21K

Campaign reports through June 30, 2026.

Outside spending, all elections

  • For$237K

Ammar Campa-Najjar (D)

Raised
$5K
Spent
$5K
Cash on hand
$0

Campaign reports through Feb. 18, 2025.

Outside spending, all elections

  • For$1.0M
  • Against$2.5M

Darrell Issa (R)

IncumbentInactive

Raised
$2.1M
Spent
$1.0M
Cash on hand
$2.7M

Campaign reports through June 30, 2026.

Outside spending, all elections

  • Against$4K

Others who filed with the FEC: Abel Chavez (D), raised $472,665; Anuj Dixit (D), raised $465,937; Ferguson Porter (D), raised $62,492; Marc Iannarino (D), raised $45,314; Corinna Contreras (D), raised $35,600; Curtis Morrison (D), raised $35,553; Suzanne Marie Till (D), raised $6,854.

Every outside spender · 26 groups, general-election money first

Every group that reported independent spending in this race
SpenderSpent onGeneralPrimaryTotalLatest
HMPHybrid PAC · $2.7M in late reportsAGAINST Jim Desmond (R)$2.7M–$2.7MSept. 29, 2026
Health Care Saves LivesSuper PAC · $272K in late reportsAGAINST Ammar Campa-Najjar (D)FOR Marni von Wilpert (D)AGAINST Jim Desmond (R)and 1 more$272K$643K$915KOct. 2, 2026
No Going Back PACSuper PAC · $178K in late reportsAGAINST Marni von Wilpert (D)FOR Jim Desmond (R)$178K–$178KOct. 2, 2026
Planned Parenthood Affiliates of California Votes PACSuper PAC · $162K in late reportsFOR Marni von Wilpert (D)AGAINST Jim Desmond (R)$162K–$162KSept. 29, 2026
Civic Renewal FundSuper PAC · $29K in late reportsFOR Jim Desmond (R)AGAINST Marni von Wilpert (D)$29K–$29KSept. 28, 2026
Democratic Messaging ProjectSuper PAC · $10K in late reportsFOR Marni von Wilpert (D)$10K–$10KAug. 21, 2026
Activate AmericaSuper PACAGAINST Darrell Issa (R)FOR Marni von Wilpert (D)AGAINST Jim Desmond (R)$5K–$5KAug. 31, 2026
Givegreen United ActionSuper PACFOR Marni von Wilpert (D)$37–$37June 25, 2026
DMFI PACHybrid PACIsraelAGAINST Ammar Campa-Najjar (D)FOR Marni von Wilpert (D)–$2.0M$2.0MMay 21, 2026
Serving CaSingle-candidate super PAC · $941K in late reportsAGAINST Marni von Wilpert (D)FOR Ammar Campa-Najjar (D)–$1.9M$1.9MMay 28, 2026
Project 218Super PACFOR Marni von Wilpert (D)–$900K$900KMay 26, 2026
VotevetsHybrid PACFOR Ammar Campa-Najjar (D)–$444K$444KApril 30, 2026
Elect Democratic WomenPACFOR Marni von Wilpert (D)–$390K$390KMay 21, 2026
48TH Accountability ProjectSuper PACAGAINST Jim Desmond (R)–$338K$338KJuly 22, 2026
Equality PACHybrid PACFOR Marni von Wilpert (D)–$326K$326KMay 22, 2026
Upset the SetupHybrid PACFOR Brandon Riker (D)–$198K$198KMay 28, 2026
Committee for Working Families, Sponsored by Labor OrganizationsSuper PACFOR Marni von Wilpert (D)–$165K$165KMay 5, 2026
Crush MAGA PACHybrid PACAGAINST Ammar Campa-Najjar (D)–$161K$161KMay 15, 2026
Women VoteSuper PACFOR Marni von Wilpert (D)–$139K$139KMay 28, 2026
Majority PACPACFOR Jim Desmond (R)–$63K$63KMay 14, 2026
SEIU COPEPACHousingHealth care costsFOR Marni von Wilpert (D)–$49K$49KMay 26, 2026
Blue Majority ProjectHybrid PACFOR Brandon Riker (D)–$35K$35KFeb. 9, 2026
Reform Leaders PACSuper PACFOR Jim Desmond (R)–$4K$4KMarch 19, 2026
Democratic Future PACSuper PACFOR Brandon Riker (D)–$3K$3KApril 20, 2026
Blue Democracy NetworkSuper PACFOR Brandon Riker (D)–$1K$1KApril 20, 2026

Latest filings · newest 30

Newest outside-spending filings in this race
DateSpenderFor or againstElectionAmount
Oct. 2, 2026LateHealth Care Saves LivesDigital ad buy (estimate)AGAINST Jim Desmond (R)General$161,084 (FEC filing)
Oct. 2, 2026LateHealth Care Saves LivesDigital ad buy (estimate)FOR Marni von Wilpert (D)General$69,036 (FEC filing)
Oct. 2, 2026LateHealth Care Saves LivesAd production (estimate)AGAINST Jim Desmond (R)General$29,363 (FEC filing)
Oct. 2, 2026LateHealth Care Saves LivesAd production (estimate)FOR Marni von Wilpert (D)General$12,584 (FEC filing)
Oct. 2, 2026LateNo Going Back PACText messagesAGAINST Marni von Wilpert (D)General$1,430 (FEC filing)
Oct. 2, 2026LateNo Going Back PACText messagesFOR Jim Desmond (R)General$473 (FEC filing)
Sept. 29, 2026LateHMPTelevision advertising - estimateAGAINST Jim Desmond (R)General$575,424 (FEC filing)
Sept. 29, 2026LateHMPDigital advertising - estimateAGAINST Jim Desmond (R)General$281,480 (FEC filing)
Sept. 29, 2026LateHMPRadio advertising - estimateAGAINST Jim Desmond (R)General$44,928 (FEC filing)
Sept. 29, 2026LateHMPMedia production - estimateAGAINST Jim Desmond (R)General$7,500 (FEC filing)
Sept. 29, 2026LateHMPMedia production - estimateAGAINST Jim Desmond (R)General$2,500 (FEC filing)
Sept. 29, 2026LatePlanned Parenthood Affiliates of California Votes PACWebsite (estimate); aggregates to $10,000 on 9/30/26AGAINST Jim Desmond (R)General$1,000 (FEC filing)
Sept. 29, 2026LatePlanned Parenthood Affiliates of California Votes PACWebsite (estimate); aggregates to $10,000 on 9/30/26FOR Marni von Wilpert (D)General$1,000 (FEC filing)
Sept. 28, 2026LateHMPDirect mail - estimateAGAINST Jim Desmond (R)General$65,981 (FEC filing)
Sept. 28, 2026LateCivic Renewal FundPrinting / postageFOR Jim Desmond (R)General$21,971 (FEC filing)
Sept. 28, 2026LateCivic Renewal FundPalm cardsAGAINST Marni von Wilpert (D)General$2,232 (FEC filing)
Sept. 28, 2026LateCivic Renewal FundPalm cardsFOR Jim Desmond (R)General$2,232 (FEC filing)
Sept. 25, 2026LatePlanned Parenthood Affiliates of California Votes PACDigital ads (estimate)FOR Marni von Wilpert (D)General$160,000 (FEC filing)
Sept. 24, 2026LateHMPMedia production - estimateAGAINST Jim Desmond (R)General$24,500 (FEC filing)
Sept. 24, 2026LateNo Going Back PACText messagesAGAINST Marni von Wilpert (D)General$1,475 (FEC filing)
Sept. 24, 2026LateNo Going Back PACText messagesFOR Jim Desmond (R)General$485 (FEC filing)
Sept. 22, 2026LateHMPTelevision advertising - estimateAGAINST Jim Desmond (R)General$495,936 (FEC filing)
Sept. 22, 2026LateHMPDigital advertising and production - estimateAGAINST Jim Desmond (R)General$231,441 (FEC filing)
Sept. 22, 2026LateHMPDirect mail - estimateAGAINST Jim Desmond (R)General$69,401 (FEC filing)
Sept. 22, 2026LateNo Going Back PACDirect mail: printing and postageAGAINST Marni von Wilpert (D)General$57,218 (FEC filing)
Sept. 22, 2026LateNo Going Back PACDirect mail: printing and postageFOR Jim Desmond (R)General$57,218 (FEC filing)
Sept. 22, 2026LateHMPRadio advertising - estimateAGAINST Jim Desmond (R)General$44,928 (FEC filing)
Sept. 22, 2026LateHMPMedia production - estimateAGAINST Jim Desmond (R)General$7,782 (FEC filing)
Sept. 22, 2026LateHMPMedia production - estimateAGAINST Jim Desmond (R)General$7,000 (FEC filing)
Sept. 18, 2026LateNo Going Back PACText messagesAGAINST Marni von Wilpert (D)General$1,016 (FEC filing)

About these numbers

  • Outside spending is money groups spent on their own ads, mail and canvassing for or against a candidate. Groups can’t coordinate it with campaigns, and it isn’t counted in what campaigns raised or spent.
  • Every group that reported independent spending to the FEC is listed, not only the groups on our issue pages. Groups tracked on an issue page carry a tag linking to it.
  • Primary, special or general comes from the election the group listed on each expenditure. Seats with a special election this cycle show that money separately.
  • Late reports are 24- and 48-hour filings made since a group’s last regular report. Earlier ones are already counted on that report, so we don’t count them twice.
  • Some nonprofits don’t have to name their donors, so this shows who spent the money, not always who gave it.

FEC data as of Oct. 5, 2026. Campaign figures cover the full 2026 cycle. Current member: Rep. Darrell Issa. How this works.