2026 midterm forecast

Colorado

Three races on Colorado's November 3 ballot: the Senate, the governor and all 8 House seats.

Forecast published October 30, 2026

Colorado Senate

John Hickenlooper (D) vs. Mark Baisley (R)

Chance to win

>99%

Hickenlooper

Projected margin

D+23.1

Hickenlooper looks secure in his bid for another Senate term

Phil Weiser (D) vs. Victor Marx (R)

Chance to win

>99%

Weiser

Projected margin

D+18.4

Weiser leads Marx comfortably in Colorado's open governor's race

All 8 House seats

Expected seats

6 D · 2 R

Statewide House vote

D+21.4

Colorado's evenly split House delegation could tilt to Democrats