Midterm Forecast2026 · Senate & House
20,000 simulated elections · Model run Oct 28, 12:50 AM ETPolls through Oct 27 · Election Nov 3
Governors / ColoradoColorado governor 2026 · open seat, held by Democrats

Phil Weiser is heavily favored to win Colorado

Phil Weiser95%Democrat
Victor Marx5%Republican
Forecast marginD+15.980%: D+4.0 to D+28.0
Polling averageNonefundamentals and ratings only
Cook ratingSolid DOct 27
2024 presidentD+11.0nation R+1.5

Governor polls

Each dot is a poll after adjustment; grey ticks show where it was as published

Dot size shows the weight a poll gets. The line is the model's polling average, with its 80% band. The bar at right is the 80% range of the forecast on election day.

Range of outcomes

Democratic margin across simulations

Phil Weiser wins in 95% of simulations (about 1 in 21 for the underdog). Median margin D+16.0.

Chance of winning over time

Daily reruns of the model

Each day is a fresh run of today's model using only the polls that had finished by the day before. Daily runs since Jul 1.

How the forecast is built

Fundamentals D+15.9. Governor races follow a state's partisanship only about half as closely as federal races, and incumbents carry a much bigger edge (both fit on the 2018 and 2022 results). The fundamentals average half the state's lean plus the national environment (D+8.7) with the eight published ratings.

No public polls, so the forecast rests on fundamentals and ratings, with wider uncertainty.

Polling errors here move with the same state's Senate race and with similar states.

What the forecasters say

Eight published ratings
CookSolid D
Inside ElectionsSolid D
SabatoSolid D
DDHQLikely D
Fox NewsSolid D
NBCSolid D
RealClearPoliticsSolid D
Silver BulletinSolid D

Every poll in the model

No public polls of this race yet.