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.

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California › California State Assembly · November 3, 2026 · Updated Oct 16, 2026

California Assembly District 17

Top two

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

Haney (D)
>99%
chance of winning
Noris-Barrera (R)
<1%
Average margin
D+68.8
80% of outcomes
D+59 to D+79
Partisan lean
D+72
Polls
No pollsmodel only

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

Haney (D)
>99%
chance of winning
Noris-Barrera (R)
<1%
Average margin
D+75.2
80% of outcomes
D+62 to D+89
Partisan lean
D+72
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+68.8R+75R+50R+25EvenD+25D+50D+75
D+75.2R+100R+50EvenD+50D+100

How the odds have moved

Chance of winning by forecast date.

0%25%50%75%100%AugSepOctNovNov 3Haney >99%Noris-Barrera <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 3Haney >99%Noris-Barrera <1%

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

The candidates

What goes into the forecast

Every ingredient's estimate of the final margin.

National environment
D+9.5Election Day forecast
California state offices
−0.6Polls for governor, statewide and legislative races · details
Environment here
D+8.9Used by the fundamentals
Swing reaching this office
58%Of a shift in the environment, from past legislative races since 2016
Pacific adjustment
−1.7How legislative races in the region have run against lean and environment lately
← RepublicanDemocratic →Lean + environmentUsual vote, shifted by 58% of the environment andthe Pacific adjustmentD+70.4Fundamentals modelAdds incumbency, past results, money andexperienceD+69.3Polls in similar placesPolling of similar races in California andlook-alike placesD+68.5Polling averageNo polls of this racenot availableHorizon forecastPolls + fundamentals, projected to Election DayD+68.8Pulse forecastPolls (and polling of similar places) only, todayD+75.3

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)2.3
Elected-experience edge0.67
First-term incumbent0
Seat's last result vs. expectation-0.24
Incumbent's last result vs. expectation-0.24

Polls

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

The district

Lean D+72: how much more Democratic or Republican than the nation it votes for president.

Presidential vote

← RepublicanDemocratic →2016 presidentD+83.8D+81.6 vs. nation2020 presidentD+76.9D+72.4 vs. nation2024 presidentD+70.3D+71.8 vs. nation

Precinct results re-aggregated to the current district lines.

Who lives here

Population
490,432
People per km²
2,534
Adults with a B.A.+
57%
White, no degree
9%of adults
  • White 34%
  • Hispanic 19%
  • Black 6%
  • Asian 34%
  • Other / multiracial 7%

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

200,384 votes · D+69.2
✓ Matt Haney (D)84.6%
Manuel Noris-Barrera (R)15.4%

2024 President Vote in this district

212,780 two-party votes · D+70.3 · D+71.8 vs. the nation
✓ Kamala Harris (D)85.2%
Donald Trump (R)14.8%

2022

147,361 votes · Uncontested by the other party
✓ Matt Haney (D)69.1%
David Campos (D)30.9%

2020 Earlier district lines

214,565 votes · Uncontested by the other party
✓ David Chiu (D)88.9%
Starchild (—)11.1%

2020 President Vote in this district

240,330 two-party votes · D+76.9 · D+72.4 vs. the nation
✓ Joe Biden (D)88.5%
Donald Trump (R)11.5%

2016 President Vote in this district

213,578 two-party votes · D+83.8 · D+81.6 vs. the nation
✓ Hillary Clinton (D)91.9%
Donald Trump (R)8.1%