PaidForPolitics

California’s 4th District

Outside groups have reported $7,346,953 in independent spending in this race: $1,403,162 for the general election and $5,943,791 in the primaries. The biggest spender so far is New Leadership Now, at $4.1M.

  • General election
    $1.4M
  • Primaries
    $5.9M
  • Late reports
    $1.4M
  • Last 14 days
    $102K

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

  • Outside spending for
  • Outside spending against

Mike Thompson (D)

Incumbent

Raised
$4.2M
Spent
$4.3M
Cash on hand
$1.1M

Campaign reports through June 30, 2026.

Outside spending, general election

  • For$64K
  • Against$1.3M

Primary and other: $1.9M for, $1.5M against.

Eric Jones (D)

Raised
$8.4M
Spent
$7.7M
Cash on hand
$656K

Campaign reports through June 30, 2026.

Outside spending, general election

None reported yet.

Primary and other: $1.3M for, $1.3M 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

Raymond Riehle (R)

Raised
$115K
Spent
$111K
Cash on hand
$4K

Campaign reports through June 30, 2026.

Outside spending, all elections

  • Against$62K

Others who filed with the FEC: Laurie John Mackenzie (R), raised $14,129; Sharon Brown (R), raised $7,000; Mandy Ghusar (R), raised $7,000; Trevor Merrell (D), raised $6,435.

Every outside spender · 6 groups, general-election money first

SpenderSpent onGeneralPrimaryTotalLatest
New Leadership NowSuper PAC · $1.3M in late reportsAGAINST Mike Thompson (D)FOR Eric Jones (D)$1.3M$2.7M$4.1MSept. 28, 2026
National Association of Realtors Political Action CommitteePAC · $64K in late reportsHousingFOR Mike Thompson (D)$64K$51K$115KSept. 29, 2026
Bda PACHybrid PACFOR Mike Thompson (D)AGAINST Eric Jones (D)–$2.6M$2.6MMay 18, 2026
Article One PACHybrid PACFOR Mike Thompson (D)–$499K$499KMay 7, 2026
California Leadership FundSuper PACAGAINST Raymond Riehle (R)–$62K$62KJune 2, 2026
Sierra Club Independent ActionSuper PACEnergy & climateFOR Mike Thompson (D)–$10$10Oct. 20, 2025

Latest filings · newest 30

DateSpenderFor or againstElectionAmount
Sept. 29, 2026LateNational Association of Realtors Political Action CommitteeOnline video production costsFOR Mike Thompson (D)General$39,200
Sept. 29, 2026LateNational Association of Realtors Political Action CommitteeDigital ad buys, meta & gifsFOR Mike Thompson (D)General$15,664
Sept. 29, 2026LateNational Association of Realtors Political Action CommitteeDigital ad buys, meta & gifsFOR Mike Thompson (D)General$7,200
Sept. 29, 2026LateNational Association of Realtors Political Action CommitteeAdministrative consultingFOR Mike Thompson (D)General$1,800
Sept. 28, 2026LateNew Leadership NowDigital adsAGAINST Mike Thompson (D)General$38,599
Sept. 18, 2026LateNew Leadership NowDirect mail adsAGAINST Mike Thompson (D)General$40,292
Sept. 18, 2026LateNew Leadership NowDirect mail adsAGAINST Mike Thompson (D)General$32,297
Sept. 17, 2026LateNew Leadership NowDirect mail adsAGAINST Mike Thompson (D)General$45,082
Sept. 17, 2026LateNew Leadership NowDirect mail adsAGAINST Mike Thompson (D)General$38,468
Sept. 17, 2026LateNew Leadership NowDirect mail adsAGAINST Mike Thompson (D)General$37,786
Sept. 11, 2026LateNew Leadership NowDirect mail adsAGAINST Mike Thompson (D)General$75,208
Sept. 11, 2026LateNew Leadership NowDirect mail adsAGAINST Mike Thompson (D)General$36,558
Sept. 9, 2026LateNew Leadership NowDigital adsAGAINST Mike Thompson (D)General$491,670
Sept. 9, 2026LateNew Leadership NowTelevision adsAGAINST Mike Thompson (D)General$358,330
Sept. 9, 2026LateNew Leadership NowDirect mail adsAGAINST Mike Thompson (D)General$75,208
Sept. 8, 2026LateNew Leadership NowAdvertising productionAGAINST Mike Thompson (D)General$41,800
Sept. 2, 2026LateNew Leadership NowVoter dataAGAINST Mike Thompson (D)General$25,000
Sept. 1, 2026LateNew Leadership NowResearch consultingAGAINST Mike Thompson (D)General$3,000
June 2, 2026California Leadership FundTextingAGAINST Raymond Riehle (R)Primary$2,590
May 29, 2026New Leadership NowAGAINST Mike Thompson (D)Primary$275,000
May 27, 2026New Leadership NowAGAINST Mike Thompson (D)Primary$46,256
May 27, 2026New Leadership NowAGAINST Mike Thompson (D)Primary$11,255
May 26, 2026California Leadership FundPrint adsAGAINST Raymond Riehle (R)Primary$18,297
May 21, 2026New Leadership NowAGAINST Mike Thompson (D)Primary$61,514
May 21, 2026New Leadership NowAGAINST Mike Thompson (D)Primary$47,258
May 21, 2026New Leadership NowAGAINST Mike Thompson (D)Primary$47,258
May 21, 2026New Leadership NowDigital adsFOR Eric Jones (D)Primary$6,918
May 21, 2026New Leadership NowAGAINST Mike Thompson (D)Primary$6,052
May 21, 2026New Leadership NowAGAINST Mike Thompson (D)Primary$6,052
May 21, 2026New Leadership NowAGAINST Mike Thompson (D)Primary$6,052

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. Mike Thompson. How this works.