2026 Pennsylvania · U.S. House

PA-04 House race odds

As of Oct 3, 2026, prediction markets give Democrat Madeleine Dean a 98% chance of winning the 2026 race for PA-04 over Republican Aurora Stuski (Kalshi 97%, Polymarket 98%).

Updated · prices refresh every 10 minutes

Madeleine Dean (D)98%
Aurora Stuski (R) 2%
Market rating
Safe D
Kalshi (D / R)
97.1% / 2.9%
Polymarket (D / R)
98.2% / 1.8%
Gap between exchanges
1.0 pts
Election Day
Nov 3, 2026 (32 days)

Price history

Democratic odds rose 3.1 points over the past 3 months, from 95% to 98%.

0%25%50%75%100%Jul 5Aug 19Oct 3
KalshiPolymarketDemocratic odds, Jul 5 – Oct 3

Every candidate, by exchange

Each exchange's prices rescaled to add up to 100%. Kalshi prices are the bid–ask midpoint; Polymarket prices are its displayed price.

Kalshi open market ↗

OutcomeChanceVolume
Madeleine Dean (D)97.1%$2K
Aurora Stuski (R)2.9%$2K

Polymarket open market ↗

OutcomeChanceVolume
Madeleine Dean (D)98.2%$7K
Aurora Stuski (R)1.8%$15K

Questions about this race

Who is favored to win the 2026 PA-04 House race?

As of Oct 3, 2026, prediction markets give Democrat Madeleine Dean a 98% chance of winning the 2026 race for PA-04 over Republican Aurora Stuski (Kalshi 97%, Polymarket 98%).

What do Kalshi and Polymarket say?

Kalshi: Democrats 97%, Republicans 3%. Polymarket: Democrats 98%, Republicans 2%. The two exchanges differ by 1.0 points.

How have the odds moved this week?

Democratic odds have risen 2.9 points since Sep 26, 2026.

When is the 2026 election?

Election Day is Nov 3, 2026, 32 days from now.

Other Pennsylvania races in 2026

Closest House races in 2026

Data

Cite as: Parlay the People, “2026 PA-04 House race,” https://parlaythepeople.com/2026/house/pa-4/, accessed Oct 3, 2026. Prediction-market prices are crowd forecasts, not certainties, and nothing here is betting or investment advice.