2026 forecast · Pennsylvania 12th

Summer Lee is all but certain to win Pennsylvania's 12th District.

Summer Lee vs James Hayes. The model has Lee ahead by 44.3 points, winning 100 percent of 2,000 simulated elections.

Safe DModel D +44.3Updated October 22, 2026
Summer Lee
Democrat
71.8%
254,960 projected votes
James Hayes
Republican
27.6%
97,777 projected votes
100%Lee
0%Hayes
Lee all but certainEach square is one simulated election night, Lee wins about 100 of 100
RatingSafe D100% chance for Lee
Model marginD +44.3No polls in the race
80 percent rangeD +51.3 to D +36.92,000 simulations
Projected votes354,886Lee 71.8%

The district map

Every district in the state, shaded by its rating

Pennsylvania districts

17 districts
Safe DLikely DLean DToss upLean RLikely RSafe R

Vote share

Each candidate's projected share and the range of 80 percent of simulations

Summer LeeDemocrat · 100% to win
71.8%
James HayesRepublican · 0% to win
27.6%

Scale runs from 25 to 75 percent. The dot is the forecast, the band is the 80 percent range and the brighter tick marks 50 percent.

Projected district vote

354,886 votes
CandidateVotesShare
Summer Lee D254,96071.8%
James Hayes R97,77727.6%
Sergio Zambrana SWP2,1490.6%
Total354,886100%

Each candidate's expected vote in the On Point simulation, at the forecast's projected turnout.

The trend

Each side's chance of winning over the forecast's recent updates

0%25%50%75%100%100% Lee0% Hayes17 updates agoToday

Polling

Every poll in the average, and how the model reads it

The Pennsylvania governor polling average
20%25%30%35%40%45%50%55%60%65%MayJunJulAugSepOct55.7Shapiro32.0Garrity
The line is the On Point average: a robust LOWESS fit through the polls, weighted by recency, sample, voter screen and pollster grade, refit three times so outliers count for lessDot size is each poll's weight todayHover or use the arrow keys to read any day
What moves the average today
The New York Times/The Philadelphia Inquirer/SienaAug 21 · 760 LV · Gold16%Shapiro +16.0
Quinnipiac UniversityOct 5 · 1,159 LV · C15%Shapiro +25.0
Susquehanna Polling & ResearchSep 30 · 700 LV · A-15%Shapiro +21.0
The New York Times/The Philadelphia Inquirer/SienaSep 21 · 615 LV · Gold14%Shapiro +20.0
Bravo Group/PennLiveOct 11 · 628 RV · NR14%Shapiro +30.1
Z to A Research for Rust Belt Rising (D)Oct 1 · 630 RV · NR12%Shapiro +19.0
Every other poll together: 13%

This is the same On Point polling average as the full average page. The forecast reads the polls through its own Election Day projection, shown as the On Point average in the table below, and blends it with partisan lean and fundamentals.

Polls of the race

Full average
PollsterSampleAgeMargin
On Point averageWeighted averageNo polls

Each margin is the poll as the pollster published it. The forecast counts every poll after its house effect and the undecided split, which is what the trail above shows; hover a margin for the counted value. Lean R and Lean D mark partisan leaning firms.

Model margin
Lee +44.3
Chance of winning
Summer Lee100%
James Hayes0%
Simulated vote
Summer Lee71.8%
James Hayes27.6%
Sergio Zambrana0.6%
How the model gets there
Partisan leanR +19.0
FundamentalsD +44.4
With pollsD +44.5
Early vote turnoutR +0.2
With early voteD +44.3

Read from 0 ballots cast so far in Pennsylvania, against the party mix the forecast expected of them, with similar states and primary turnout. Early vote tracker

How we got here

From the state's partisan lean to the forecast, one stage at a time

D +53R +53Partisan leanthe state's baselineR +19.0Fundamentalsapproval, economy, candidatesD +44.4With pollsno pollsD +44.5With early voteturnout so farD +44.3
Methodology
Every county is rebuilt by simulating voters going to the polls, 2,000 times, from On Point Polling survey data, past results, and the polling average. How the model works.