PA Legislature 2026

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House District 131

Lehigh Valley · currently held by R (Milou Mackenzie)

Forecast

57%
chance Meriam H Sabih (D) wins
Democrat
Meriam H Sabih
Republican
V Milou Mackenzie
Rating
Tilt D
Expected margin
D+1.1 (90% range R+10.2 to D+12.6)
Chance of flipping
56.5%
Tipping-point chance
2.4% (chance this seat decides control)

How the forecast was built

Statewide generic legislative margin (environment)D+6.6
+ District partisan lean-7.4
= Fundamentals before candidatesR+0.7
+ Incumbency advantage-2.8
+ Incumbent's past over-performance (shrunk)+2.0
+ Campaign finance (log receipts ratio)+0.7
= Fundamentals marginR+0.9
District polls (2, average D+4.0, weight 38%)+1.9
External ratings prior (weight 25%)+0.2
Final expected marginD+1.1

District-level error SD 5.6 pts; total with statewide and regional error ≈ 7.0 pts.

Inputs

Partisan lean (current lines)

RaceDistrictStatewideLeanWeight
2024 PresidentR+10.3R+1.8-8.50.45
2022 GovernorD+5.7D+15.0-9.40.2
2022 U.S. SenateR+4.3D+5.0-9.40.2
2020 PresidentR+8.6D+1.1-9.70.15

Last legislative result (2024): R+14.5 vs a statewide legislative environment of R+8.2 → lean -3.5, blended at 30%.

Candidates & money

Incumbent
Milou Mackenzie (R) — running
Receipts (cycle)
D $50,971 · R $19,435

Past results in this district

YearDemocratRepublicanMargin
2024Meriam H SabihV. Milou MackenzieR+14.5
2022Kevin BrancoV. Milou MackenzieR+9.8
2020Kevin BrancoV Milou MackenzieR+8.5

District polls

PollsterSponsorEndnMarginAdjustedWeight
State Navigatenone (State Navigate polling fund)2026-10-14464D+5.0D+5.080%
State Navigatenone (State Navigate polling fund)2026-09-20389eveneven20%

External ratings

SourceRatingImplied P(Dem)WeightAs of
state_navigateLean R (lean r)58%0.252026-10-15

Ratings are blended as a prior, not copied: they moved this seat's expected margin by +0.2 points.