California House District 10 2026: the ads, and who's paying for them
Follow Mark DeSaulnier in office
Mark DeSaulnier won. Get what Mark DeSaulnier says in office by email, analyzed for rhetorical techniques, once sworn in. And an email if the result changes: a recount or a call reversed. One-click unsubscribe.
Confirming also makes your free Semblen account, with a 14-day Pro trial. No card.
Mark DeSaulnier (Democrat) and Jeff Frese (Republican) are the nominees for California's 10th congressional district in the November 3, 2026 general election. Mark DeSaulnier is the incumbent. By their latest FEC reports, Mark DeSaulnier's campaign had raised $722,000 (through October 14, 2026). Outside groups have reported $10 for Mark DeSaulnier and $0 against.
Mark DeSaulnier (DEM, incumbent), Jeff Frese (REP).
4 others filed with the FEC; any ads they ran are below. 0 ads analyzed, 0 with at least one technique in the copy.
Newest first. The paid-for-by line is the advertiser's own filing.
Also on every California ballot: 14 statewide ballot measures → The ballot wording and the official arguments, read for rhetorical techniques.
How to vote in California
From California's official election office. Each line links to the official page it came from.
Checked October 8, 2026. Rules can change; confirm with the official site before you go.
Something wrong or out of date? Tell us
A person reads every report and fixes errors the same day.
Got a political text?
Paste a campaign text message you’ve received. Semblen marks the persuasion techniques in its wording and lists the factual claims it makes. Take your name out first: what you paste is analyzed and kept like any text.
Semblen is free to read and has no ads. If this page was useful, you can support it.
Money in this race
From FEC filings for 2025–26. Outside spending is money a group spends on its own about a candidate — TV and online ads, mail, canvassing. It is not a donation to the campaign, and the candidate does not control it. Supporting means it was spent to help that candidate win; Opposing means it was spent to defeat them, usually on attack ads. Groups report it within 24 or 48 hours as the election nears. Raised is the campaign's own fundraising, as of its latest quarterly report. Largest donors come from each outside spender's own FEC receipts, with each donor's share of its itemized receipts; donors under $100,000 are not named. People are shown with the employer and occupation they reported. A donor that is itself a political committee is shown with its own largest donors. Companies and nonprofits don't report their funders to the FEC, so the trail ends there, and the page says so.
Mark DeSaulnier (DEM, incumbent)
- Raised
- $722K through 2026-10-14
individuals $320K · PACs $399K · cash on hand $467K
- Outside spending
- $10 supporting DeSaulnier · latest reported 2026-01-09
- Largest outside spenders
- SIERRA CLUB INDEPENDENT ACTION
— $10 supporting DeSaulnier
- Bundled through PACs
- $250 through 1 PAC · FEC bulk data of 2026-11-01
JSTREETPAC
— $250 from 1 gift
Lobbyist/registrant PAC
93 PACs gave directly — alphabetical; the legal limit is $5,000 per election
- AFLAC PAC (AFLAC PAC) $8,000
- AIR LINE PILOTS ASSOCIATION PAC $6,000
- AIRPORTS COUNCIL INTERNATIONAL-NORTH AMERICA PAC $1,000
- ALASKA AIR GROUP INC POLITICAL ACTION COMMITTEE $2,000
- ALLIANCE FOR AUTOMOTIVE INNOVATION PAC (AUTO PAC) $1,000
- ALLIANCE FOR RETIRED AMERICANS POLITICAL ACTION FUND $2,500
- ALLIED PILOTS ASSOCIATION POLITICAL ACTION COMMITTEE $10K
- AMALGAMATED SUGAR COMPANY POLITICAL ACTION COMMITTEE $1,000
- AMALGAMATED TRANSPORT UNION - COPE $2,500
- AMERICAN ACADEMY OF PEDIATRIC DENTISTRY POLITICAL ACTION COMMITTEE $1,000
- AMERICAN ASSOCIATION FOR JUSTICE PAC (AAJ PAC) $5,000
- AMERICAN ASSOCIATION OF NURSE PRACTITIONERS POLITICAL ACTION COMMITTEE $1,000
- AMERICAN COUNCIL OF ENGINEERING COMPANIES (ACEC/PAC) $10K
- AMERICAN COUNCIL OF LIFE INSURERS PAC $2,500
- AMERICAN CRYSTAL SUGAR PAC $10K
- AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES PEOPLE $10K
- AMERICAN FEDERATION OF TEACHERS COPE $10K
- AMERICAN OCCUPATIONAL THERAPY ASSOCIATION. INC. PAC $5,000
- AMERICAN PHYSICAL THERAPY ASSOCIATION PAC $1,000
- AMERICAN POSTAL WORKERS UNION COMMITTEE ON POLITICAL ACTION $1,500
- AMERICAN SPEECH-LANGUAGE-HEARING ASSOCIATION PAC (ASHA PAC) $3,500
- AMERICAN SUGAR CANE LEAGUE OF USA INC PAC $3,000
- ASSOCIATION OF PROFESSIONAL FLIGHT ATTENDANTS PAC (APFA PAC) $1,000
- AT&T INC. EMPLOYEE FEDERAL POLITICAL ACTION COMMITTEE (AT&T EMPLOYEE FEDERAL PAC) $4,000
- BLUE SHIELD OF CALIFORNIA $2,500
- BNSF RAILWAY COMPANY RAILAC (BNSF RAILPAC) $2,500
- BRICKLAYERS AND ALLIED CRAFTWORKERS PAC $2,500
- BROTHERHOOD OF LOCOMOTIVE ENGINEERS AND TRAINMEN PAC $10K
- CAP-PAC SEPARATE SEGREGATED FUND OF THE NATIONAL COMMUNITY ACTION FOUNDATION INC $7,500
- CARPENTER'S LEGISLATIVE IMPROVEMENT CMTE UNITED BROTHERHOOD OF CARPENTERS AND JOINERS $5,000
- CEMEX INC. EMPLOYEES PAC $3,000
- COMMUNICATIONS WORKERS OF AMERICA - COPE POLITICAL CONTRIBUTIONS COMMITTEE $1,000
- DEMOCRATS OF ROSSMOOR $375
- DENTONS US LLP PAC $1,000
- DIST NO. 1-PCD, MARINE ENGINEERS' BENEFICIAL ASSOC. - PAF (MEBA-PAF) $1,000
- EDISON INTERNATIONAL PAC $5,500
- ENGINEERS PEC (EPEC)/INT'L UNION OF OPERATING ENGINEERS $2,500
- ENTERPRISE HOLDINGS INC. / ENTERPRISE MOBILITY POLITICAL ACTION COMMITTEE $7,500
- FAA MANAGERS ASSOCIATION INC. PAC $1,000
- FAIR SHOT PAC $2,000
- FORD MOTOR COMPANY CIVIC ACTION FUND $2,500
- GENERAL AVIATION MANUFACTURERS ASSOCIATION POLITICAL ACTION COMMITTEE $1,000
- HDR, INC. PAC $9,500
- HERZOG PAC $2,000
- HNTB HOLDINGS LTD. PAC $1,000
- HONEYWELL INTERNATIONAL POLITICAL ACTION COMMITTEE $2,000
- INTERNATIONAL ALLIANCE OF THEATRICAL STAGE EMPLOYEES FEDERAL SPEECH PAC $1,000
- INTERNATIONAL ASSOCIATION OF FIREFIGHTERS INTERESTED IN REGISTRATION AND EDUCATION PAC $5,000
- INTERNATIONAL ASSOCIATION OF HEAT & FROST INSULATORS AND ALLIED WORKERS $1,000
- INTERNATIONAL BROTHERHOOD OF BOILERMAKERS CAMPAIGN ASSISTANCE FUND $10K
- INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE $10K
- MACHINISTS NON-PARTISAN POLITICAL LEAGUE $5,000
- MASTERS, MATES & PILOTS POLITICAL CONTRIBUTION FUND $3,608
- MATSON, INC FEDERAL ELECTION COMMITTEE $5,000
- MICHIGAN SUGAR COMPANY GROWERS POLITICAL ACTION COMMITTEE $1,000
- MINN-DAK FARMERS COOPERATIVE SUGAR PAC $1,000
- NATIONAL ACTIVE AND RETIRED FEDERAL EMPLOYEES ASSOCIATION POLITICAL ACTION COM (NARFE-PAC) $500
- NATIONAL AIR TRAFFIC CONTROLLERS ASSOCIATION PAC $8,500
- NATIONAL ASSOCIATION OF BENEFITS AND INSURANCE PROFESSIONALS PAC (NABIP PAC) $1,000
- NATIONAL ASSOCIATION OF POSTAL SUPERVISORS PAC $1,000
- NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE $4,000
- NATIONAL ATHLETIC TRAINERS ASSOCIATION, INC POLITICAL ACTION COMMITTEE $2,500
- NATIONAL BEER WHOLESALERS ASSOCIATION PAC $3,000
- NATIONAL RURAL ELECTRIC COOPERATIVE ASSOC AMERICA'S ELECTRIC COOPERATIVE PAC $2,000
- NATIONAL UNION OF HEALTHCARE WORKERS FEDERAL COMMITTEE ON POLITICAL EDUCATION $7,000
- NETJETS INC PAC $1,000
- NOMI HEALTH, INC. PAC $2,500
- NORTH AMERICA'S BUILDING TRADES UNIONS POLITICAL EDUCATION FUND $1,000
- OPTION CARE HEALTH, INC PAC $500
- PROFESSIONAL ENGINEERS IN CA GOV'T FED PAC (PECG FED-PAC) $1,000
- PSYCHOLOGY PAC OF AMERICAN PSYCHOLOGICAL ASSOC SERVICES INC. $1,000
- RGA REINSURANCE COMPANY FEDERAL PAC $1,000
- SCHNEIDER NATIONAL INC. TRANSPAC $1,000
- SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) $2,500
- SHEET METAL, AIR, RAIL, AND TRANSPORTATION WORKERS POLITICAL ACTION LEAGUE $9,000
- SMART TD PAC $1,000
- SOUTHERN MINNESOTA BEET SUGAR COOPERATIVE PAC $2,000
- SOUTHWEST AIRLINES PILOT'S ASSOCIATION PAC (SWAPA PAC) $2,500
- STATE FARM MUTUAL AUTOMOBILE INSURANCE COMPANY FEDERAL POLITICAL ACTION COMMITTEE (STATE FARM PAC) $500
- SUN LIFE FINANCIAL (U.S.) SERVICES COMPANY INC PAC SUN LIFE PAC $2,500
- SUSTAINABLE ENERGY AND ENVIRONMENT COALITION PAC (SEEC PAC) $1,000
- THE BOEING COMPANY PAC $2,000
- THE ESOP ASSOCIATION PAC $1,000
- THE NEA FUND FOR CHILDREN AND PUBLIC EDUCATION PAC $5,000
- TIM GRAYSON FOR SENATE 2024 $500
- TRANSAMERICA CORPORATION PAC $2,000
- TRANSPORT WORKERS UNION OF AMERICA POLITICAL CONTRIBUTIONS COMMITTEE $5,000
- TRANSPORTATION TRADES DEPARTMENT AFL-CIO PAC $2,000
- UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION ACTIVE BALLOT CLUB $4,000
- UNITED POSTMASTERS AND MANAGERS OF AMERICA POLITICAL FUND $1,500
- UNUM GROUP PAC (UNUMPAC) $2,500
- VPP $1,000
- WSP USA INC. PAC $1,000
All filings at the FEC ↗
No 2025–26 FEC reports or outside spending found for Jeff Frese.
No campaign ads analyzed for this race yet.
What this page is
- An ad is on this page because its own "Paid for by" line is a campaign in this race; or it comes from a national Senate group and ran mostly in CA; or it ran mostly in CA and names a candidate — unless its sponsor is a campaign for some other office. Ads from outside groups appear alongside the campaigns' own.
- Campaigns run one text as many separate ads. Identical text from the same sponsor is one card here, marked with its number of variants.
- A technique is a specific rhetorical move in the wording, found by our model and explained in one line. It is not a claim that the ad is false.
- Claims are checked when a reader asks: press "Check this ad's claims" on a card. Running a check and seeing its verdicts are part of Semblen Pro, because each check costs money to run; anyone can see which claims an ad makes. The ten ads with the most money behind them in each race are checked ahead of time.
- Claim verdicts say what the cited sources say. A verdict that an ad is wrong or misleading is shown only when it cites an established fact-checker or an institutional record — Congress, a federal agency, a court — and its confidence is not low; a weaker one is not shown at all. Each verdict shows what it rests on and how confident it is. If we got one wrong, press Disagree: a verdict that readers dispute and no one defends comes down.
- Video ads come from the campaigns' own YouTube channels; the transcript is analyzed. Meta ads are analyzed on their text; their video and images are not, yet.