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535

Colorado Senate

  • John Hickenlooper (Dem · incumbent)
  • Mark Baisley (Rep)

Democrats are favored, winning in 94 in 100 simulations.

Forecast detail

as of Aug 19, 2026, 8:30 PM EDT

Rating

Favors Dem

Win probability

D 94%

Estimated margin

D+18.9

5th–95th interval

R+0.5 to D+38.4

Win probability over time

Dem win probability Rep win probability Tossup band

Polls

No public polling — forecast rests on fundamentals (state lean, national environment).

Dispatches about this race

No dispatches about this race yet.