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?

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

Pennsylvania's 9th District

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

Wallace (D)
<1%
chance of winning
Meuser (R)
>99%
Average margin
R+29.4
80% of outcomes
R+38 to R+21
Partisan lean
R+38
Polls
No pollsmodel only

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

Wallace (D)
<1%
chance of winning
Meuser (R)
>99%
Average margin
R+29.9
80% of outcomes
R+42 to R+19
Partisan lean
R+38
Polls
No pollsmodel only

Range of outcomes

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

R+29.4R+40R+20EvenD+20D+40
R+29.9R+60R+40R+20EvenD+20D+40D+60

How the odds have moved

Chance of winning by forecast date.

0%25%50%75%100%AugSepOctNovNov 3Wallace <1%Meuser >99%

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

0%25%50%75%100%AugSepOctNovNov 3Wallace <1%Meuser >99%

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

The candidates

Democratic

Rachel Wallace

Former chief of staff in the Office of Management and Budget

Experience
No elected office
Raised
$697.9K
From individuals
$655.1K
Spent
$311K
Cash on hand
$386.9K

Money: FEC, through Jun 30, 2026.

Profile and career

RepublicanIncumbent

Dan Meuser

Incumbent U.S. representative

Experience
Statewide office or Congress
Raised
$2.1M
From individuals
$962.2K
Spent
$2M
Cash on hand
$136.9K

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
Mid-Atlantic adjustment
+0.5How House races in the region have run against lean and environment lately
← RepublicanDemocratic →Lean + environmentUsual vote, shifted by 78% of the environment andthe Mid-Atlantic adjustmentR+29.8Fundamentals modelAdds incumbency, past results, money andexperienceR+29.7Polls in similar placesPolling of similar races in Pennsylvania andlook-alike placesR+28.8Polling averageNo polls of this racenot availableHorizon forecastPolls + fundamentals, projected to Election DayR+29.4Pulse forecastPolls (and polling of similar places) only, todayR+30.0

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)-0.72
Elected-experience edge-1
First-term incumbent0
Seat's last result vs. expectation-0.53
Incumbent's last result vs. expectation-0.53

Polls

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

The district

Lean R+38: how much more Democratic or Republican than the nation it votes for president.

Presidential vote

← RepublicanDemocratic →2016 presidentR+41.1R+43.3 vs. nation2020 presidentR+36.9R+41.5 vs. nation2024 presidentR+38.3R+36.8 vs. nation

Precinct results re-aggregated to the current district lines.

Who lives here

Population
754,670
People per km²
47
Adults with a B.A.+
23%
White, no degree
69%of adults
  • White 87%
  • Hispanic 7%
  • Black 2%
  • Asian 1%
  • Other / multiracial 3%

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

391,735 votes · R+41.0
✓ Daniel Meuser (R)70.5%
Amanda Waldman (D)29.5%

2024 President Vote in this district

393,631 two-party votes · R+38.3 · R+36.8 vs. the nation
✓ Donald Trump (R)69.1%
Kamala Harris (D)30.9%

2022

301,807 votes · R+38.6
✓ Daniel Meuser (R)69.3%
Amanda R Waldman (D)30.7%

2020 Earlier district lines

351,268 votes · R+32.7
✓ Daniel Philip Meuser (R)66.3%
Gary Steven Wegman (D)33.7%

2020 President Vote in this district

400,817 two-party votes · R+36.9 · R+41.5 vs. the nation
✓ Donald Trump (R)68.5%
Joe Biden (D)31.5%

2018 Earlier district lines

248,927 votes · R+19.5
✓ Daniel Meuser (R)59.7%
Dennis Wolff (D)40.3%

2016 Earlier district lines

294,565 votes · R+26.7
✓ Bill Shuster (R)63.3%
Art Halvorson (D)36.7%

2016 President Vote in this district

331,665 two-party votes · R+41.1 · R+43.3 vs. the nation
✓ Donald Trump (R)70.5%
Hillary Clinton (D)29.5%