Horizon · our Election Day forecast: polls, plus fundamentals like incumbency, fundraising and past results.

Pulse · polls only: where the races stand today, with no fundamentals and wider uncertainty.

What's the difference?

California › U.S. House of Representatives · November 3, 2026 · Updated Oct 16, 2026

California's 39th District

Top two

Takano is very likely to win: Takano wins in more than 99 of every 100 simulations.

Takano (D)
>99%
chance of winning
Manos (R)
<1%
Average margin
D+22.0
80% of outcomes
D+13 to D+32
Partisan lean
D+14
Polls
No pollsmodel only

Takano is very likely to win: Takano wins in 49 of every 50 simulations.

Takano (D)
97%
chance of winning
Manos (R)
3%
Average margin
D+20.0
80% of outcomes
D+8 to D+33
Partisan lean
D+14
Polls
No pollsmodel only

How this race is decided

Top-two primary

All candidates run in one primary regardless of party and the two with the most votes advance, so two candidates of the same party can meet in November. The forecast then marks the seat as safe for that party.

Range of outcomes

Final margin across our simulations; the white dashes mark the middle 80%.

D+22.0R+40R+20EvenD+20D+40
D+20.0R+40R+20EvenD+20D+40

How the odds have moved

Chance of winning by forecast date.

0%25%50%75%100%AugSepOctNovNov 3Takano >99%Manos <1%

Updated nightly. Each day is the current model run on the polls that had ended by then (how).

0%25%50%75%100%AugSepOctNovNov 3Takano 97%Manos 3%

Updated nightly. Each day is the current model run on the polls that had ended by then (how).

The candidates

DemocraticIncumbent

Mark Takano

Incumbent U.S. representative

Experience
Statewide office or Congress
Raised
$1.1M
From individuals
$608.9K
Spent
$1.1M
Cash on hand
$233.3K

Money: FEC, through Sep 30, 2026.

Profile and career · Wikipedia

What goes into the forecast

Every ingredient's estimate of the final margin.

National environment
D+9.5Election Day forecast; federal races run in it
Swing reaching this office
78%Of a shift in the environment, from past House races since 2016
Pacific adjustment
−1.2How House races in the region have run against lean and environment lately
← RepublicanDemocratic →Lean + environmentUsual vote, shifted by 78% of the environment andthe Pacific adjustmentD+21.4Fundamentals modelAdds incumbency, past results, money andexperienceD+22.3Polls in similar placesPolling of similar races in California andlook-alike placesD+20.7Polling averageNo polls of this racenot availableHorizon forecastPolls + fundamentals, projected to Election DayD+21.9Pulse forecastPolls (and polling of similar places) only, todayD+19.8

Each estimate is a margin before national and statewide uncertainty is simulated. Horizon blends polls, fundamentals and a little of the similar-places estimate, weighting each by how precise it is; Pulse uses polls and similar places only.

Fundamentals inputs
Incumbency (+1 D, −1 R)1
Fundraising edge (log ratio of individual money)1.29
Elected-experience edge0.67
First-term incumbent0
Seat's last result vs. expectation0
Incumbent's last result vs. expectation0

Polls

No public polls of this race. The forecast relies on fundamentals and on polling of similar places.

The district

Lean D+14: how much more Democratic or Republican than the nation it votes for president.

Presidential vote

← RepublicanDemocratic →2016 presidentD+30.4D+28.2 vs. nation2020 presidentD+26.7D+22.2 vs. nation2024 presidentD+9.9D+11.4 vs. nation

Precinct results re-aggregated to the current district lines.

Who lives here

Population
710,066
People per km²
1,024
Adults with a B.A.+
20%
White, no degree
16%of adults
  • White 19%
  • Hispanic 64%
  • Black 8%
  • Asian 6%
  • Other / multiracial 4%

American Community Survey 2020–2024, aggregated from census tracts.

Past results

Results in the same-numbered district; earlier elections may have used different lines.

2024 Earlier district lines

229,566 votes · D+13.4
✓ Mark Takano (D)56.7%
David Serpa (R)43.3%

2024 President Vote in this district

227,411 two-party votes · D+9.9 · D+11.4 vs. the nation
✓ Kamala Harris (D)55.0%
Donald Trump (R)45.0%

2022 Earlier district lines

131,597 votes · D+15.3
✓ Mark Takano (D)57.7%
Aja Smith (R)42.3%

2020 Earlier district lines

343,783 votes · R+1.2
✓ Young Kim (R)50.6%
Gilbert Ray Cisneros Jr (D)49.4%

2020 President Vote in this district

259,514 two-party votes · D+26.7 · D+22.2 vs. the nation
✓ Joe Biden (D)63.4%
Donald Trump (R)36.6%

2018 Earlier district lines

244,393 votes · D+3.1
✓ Gil Cisneros (D)51.6%
Young Kim (R)48.4%

2016 Earlier district lines

263,456 votes · R+14.5
✓ Edward R Royce (R)57.2%
Brett Murdock (D)42.8%

2016 President Vote in this district

194,283 two-party votes · D+30.4 · D+28.2 vs. the nation
✓ Hillary Clinton (D)65.2%
Donald Trump (R)34.8%