Influence no longer invisible Races · CA-40 House 2026
Hidden Levers
Race · U.S. House · California · 2026

California District 40 · U.S. House · 2026

Seat U.S. House, California District 40

← All 2026 races

Race header

U.S. House, California District 40 · Incumbent running
REPAdvanced to the general
Ken Calvert
41%Hume Outlook · Hume model estimate · as of 2026-10-28
REPAdvanced to the general
Young Kim incumbent
59%Hume Outlook · Hume model estimate · as of 2026-10-28
IncumbentYoung Kim

Hume Outlook

hume-2026.10-r1 · Forecast as of Oct 28, 2026
59% Young Kim · RepublicanLow confidenceChance to win, between the two named candidates
REP Young Kim 59%
REP Ken Calvert 41%
  • Hume model estimate · built on polls, fundamentals, and markets
Latest poll Calvert 34.0% · Kim 43.0% Grassroots Targeting / California First Fund · 2026-09-09
Seat lean (Hume PVI) Not available The district lean is held: this state's House map was redrawn, and the plan-aware lean has not yet been cross-checked.
Prior result, this seat Not available District redrawn; not comparable.

Side by side

2 candidates · 5 measures
FEC summary through 2026-10-14
MeasureREPCalvertREPKim
Total receiptsUSD, cycle to date, all authorized committees
Ken Calvert$7,050,383.48
Young Kim$10,148,196.21
Total disbursementsUSD, cycle to date
Ken Calvert$6,332,128.58
Young Kim$10,973,616.52
Cash on handUSD, close of the covered period
Ken Calvert$980,390.51
Young Kim$910,972.96
Latest pollpercent, as stored
Ken Calvert34.0%Grassroots Targeting · 2026-09-09
Young Kim43.0%Grassroots Targeting · 2026-09-09
Seat lean (Hume PVI)identical for every candidate
Ken CalvertNot available The district lean is held: this state's House map was redrawn, and the plan-aware lean has not yet been cross-checked.
Young KimNot available The district lean is held: this state's House map was redrawn, and the plan-aware lean has not yet been cross-checked.
Money is each candidate's FEC summary: every committee the candidate has authorized, combined, as filed through the coverage date shown.

Polling

2 listed · newest first
Newest field end 2026-09-09
Pollster / sponsorField datesSampleCalvertKimOthers
Grassroots Targeting2026-09-05 to 2026-09-09LV · n=80034.0%43.0%none
American Viewpoint2026-07-08 to 2026-07-12LV · n=40033.0%32.0%none
Polling data CC BY 4.0 (FiveThirtyEight / VoteHub).

    Seat lean · Hume PVI

    not available

    Not available The district lean is held: this state's House map was redrawn, and the plan-aware lean has not yet been cross-checked.

    Prior result, this seat

    not available

    Not available District redrawn; not comparable.

    Sources: FEC filings (through Oct 14, 2026) · Polls: FiveThirtyEight / VoteHub (CC BY 4.0) · Hume PVI and Hume Outlook: Hidden Levers estimates.

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