Races · house · 2024 · Pennsylvania

house · open seat

Madeleine Dean vs David Winkler

← Pennsylvania house Pennsylvania house →

Safe DD +22.4 forecast· 0 polls · 0 markets

Model's final pre-election call · win probabilitypoliagg-v34 · final pre-election call
99% Dean (D)
1% Winkler (R)
Win probability
Madeleine Dean99% (D)
David Winkler1% (R)
Modelpoliagg-v34 · final pre-election call
Chance of winning across many simulations of the race — not projected vote share.
R+15R+5TIEDD+5D+15
Predicted margin
Point estimateD +22.4
80% CID+10.4 → D+34.4
The model’s central margin (D-positive) with its 80% interval — the shaded band on the scale.
Model's predicted final margin D +22.4 · 80% CI D+10.4 → D+34.4
Actual result D+18.2 · backtest (race already called)

Momentum

—

insufficient data

Tipping-point P

0.0%

Decisive for chamber control

Market · D-side

—

Cross-platform consensus

News articles · 30d

—

no recent coverage

Where this race stands

Verified

Likely D · model 99% D

No recent polls or markets for this race. PVI baseline (D+8) suggests Likely D.

The poliagg-v34 ensemble forecasts D+22.4 with an 80% CI ranging from D+10.4 (10th pctile) to D+34.4 (90th pctile), giving D a 99% chance of winning.

CITATIONS · likely-d

Forecast · poliagg-v34

Predicted final margin

D +22.4

80% CI: D +10.4 → D +34.4 · win prob 99%

R+45R+23TIEDD+23D+45

Quality · inputs

Data quality · medium

Polls used	0
Days to election	passed
Actual result	D+18.2
Residual σ	6.00pt
Generated	7/1/2026

Endorsements · 0 total

Source · Wikipedia · 2 candidates with no endorsements yet

DMadeleine Dean0 endorsers

no endorsers yet

No endorsements found yet. Endorsements come from the candidate's Wikipedia article (when one exists) and update with the daily scrape.

RDavid Winkler0 endorsers

no endorsers yet

No endorsements found yet. Endorsements come from the candidate's Wikipedia article (when one exists) and update with the daily scrape.

Money raised · own committees

FEC Schedule E (independent expenditures) + candidate-committee totals · last filing 2024-12-19

Madeleine DeanH8PA04116 ↗

Receipts

$1.8M

Disburse

$1.5M

Cash on hand

$968.7K

Debts

Top industries

Securities & investment$16.5K

Lawyers / law firms$6.8K

Top contributors

APOLLO GLOBAL$16.5K

KBRA$13.0K

LINDY COMMUNITIES$8.6K

DIVERSIFIED SEARCH$6.9K

STRADLEY RONON STEVENS & YOUNG, LLP$6.8K

David WinklerH4PA04107 ↗

Receipts

$73.5K

Disburse

$11.5K

Cash on hand

$33.4K

Debts

$24.0K

Top industries

No industry data.

Top contributors

No contributor data.

Outside spending · independent expenditures

FEC Schedule E (independent expenditures) + candidate-committee totals · 24/48-hr IE reports

IE total

$1.6K

D side

$1.1K · 73%

R side

$420.37 · 27%

Top spender

FOR OUR FUTURE

For / against split

For Dean $1.1K

Against Dean $210.18

For Winkler $210.19

Spender	Side	Amount	Share	Target
FOR OUR FUTURE	D	$480	31%	for Madeleine Dean
ENVIRONMENT AMERICA ACTION FUND	D	$479.44	31%	for Madeleine Dean
PENNSYLVANIA PRO-LIFE FEDERATION PAC	R	$420.37	27%	for David Winkler
PEOPLE POWER PENNSYLVANIA	D	$163.23	11%	for Madeleine Dean
SIERRA CLUB INDEPENDENT ACTION	D	$10	1%	for Madeleine Dean

Editorial ratings · 5 raters

Cook · Sabato · Inside Elections · 538 · DDHQ et al.

Safe D5

CNalysis

Safe D

Nov 15

The Cook Political Report

Safe D

Dec 11

Elections Daily

Safe D

Feb 4

Inside Elections

Safe D

Dec 14

Sabato's Crystal Ball

Safe D

Sep 6

Demographic crosstabs

age · education · race · gender

No demographic crosstabs published for this race yet. Most pollsters release only topline numbers; subgroup breakdowns (age, education, race, gender) appear here when a pollster publishes them.

Rating timeline

May 11, 2026Safe Dmodel

Verification trail

Polls verified0 / 0deterministic

Polls flagged—none

Markets ingested0 platformsnone listed

FEC filingssyncedcommittee + IE · 2024-12-19

Endorsements—nothing to sync

News coverage< 5 articlesGoogle News

Method · bounds + percentage totals + date-order checks