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?

Michigan › Michigan State Senate · November 3, 2026 · Updated Oct 16, 2026

Michigan State Senate District 9

Flip risk: Republican-held seat, a toss-up (52% chance it changes parties).

A toss-up: each side wins about half the simulations.

Brooks (D)
52%
chance of winning
Webber (R)
48%
Average margin
D+0.4
80% of outcomes
R+9 to D+10
Partisan lean
R+4
Polls
No pollsmodel only

Flip risk: Republican-held seat, a toss-up (56% chance it changes parties).

A toss-up: each side wins about half the simulations.

Brooks (D)
56%
chance of winning
Webber (R)
44%
Average margin
D+1.5
80% of outcomes
R+11 to D+14
Partisan lean
R+4
Polls
No pollsmodel only

Range of outcomes

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

D+0.4R+20R+10EvenD+10D+20
D+1.5R+30R+20R+10EvenD+10D+20D+30

How the odds have moved

Chance of winning by forecast date.

0%25%50%75%100%AugSepOctNovNov 3Brooks 52%Webber 48%

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

0%25%50%75%100%AugSepOctNovNov 3Brooks 56%Webber 44%

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
Michigan state offices
−0.3Polls for governor, statewide and legislative races · details
Environment here
D+9.2Used by the fundamentals
Swing reaching this office
58%Of a shift in the environment, from past legislative races since 2016
Midwest adjustment
+0.3How legislative races in the region have run against lean and environment lately
← RepublicanDemocratic →Lean + environmentUsual vote, shifted by 58% of the environment andthe Midwest adjustmentD+3.9Fundamentals modelAdds incumbency, past results, money andexperienceD+0.4Polls in similar placesPolling of similar races in Michigan andlook-alike placesD+0.4Polling averageNo polls of this racenot availableHorizon forecastPolls + fundamentals, projected to Election DayD+0.4Pulse forecastPolls (and polling of similar places) only, todayD+1.5

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)-0.28
Elected-experience edge-0.67
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 in the state.

The district

Lean R+4: how much more Democratic or Republican than the nation it votes for president.

Presidential vote

← RepublicanDemocratic →2016 presidentR+6.0R+8.2 vs. nation2020 presidentD+0.9R+3.6 vs. nation2024 presidentR+5.3R+3.8 vs. nation

Precinct results re-aggregated to the current district lines.

Who lives here

Population
266,315
People per km²
1,058
Adults with a B.A.+
53%
White, no degree
37%of adults
  • White 69%
  • Hispanic 4%
  • Black 5%
  • Asian 17%
  • Other / multiracial 5%

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 President Vote in this district

142,181 two-party votes · R+5.3 · R+3.8 vs. the nation
✓ Donald Trump (R)52.7%
Kamala Harris (D)47.3%

2022 Earlier district lines

115,184 votes · R+0.7
✓ Michael Webber (R)50.3%
Padma Kuppa (D)49.6%

2020 President Vote in this district

141,637 two-party votes · D+0.9 · R+3.6 vs. the nation
✓ Joe Biden (D)50.5%
Donald Trump (R)49.5%

2018 Earlier district lines

99,749 votes · D+31.8
✓ Paul Wojno (D)65.9%
Jeff Bonnell (R)34.1%

2016 President Vote in this district

116,188 two-party votes · R+6.0 · R+8.2 vs. the nation
✓ Donald Trump (R)53.0%
Hillary Clinton (D)47.0%

2014 Earlier district lines

70,845 votes · D+35.9
✓ Steve Bieda (D)68.0%
Hawke Fracassa (R)32.0%