Colorado Senate 2026

Name: 2026 Colorado U.S. Senate election
Start: 2026-11-03
End: 2026-11-03
Location: Colorado

John Hickenlooper (D) · running · Cook PVI D+6 · last result 53.50% D

Safe DShare card

Republican

Mark Baisley

1¢

Polymarket price

Wikipedia bio

Mark Allan Baisley is an American politician who is a state senator from Roxborough Park, Colorado. A Republican, Baisley represents Colorado's 4th Senate district.

Source: Mark Baisley

No freely licensed photo on Wikimedia Commons.

Approval Voting

Christopher Baum

No freely licensed photo on Wikimedia Commons.

Forward

Bob Chew

Democratic

John Hickenlooper

99¢

Polymarket price

No freely licensed photo on Wikimedia Commons.

Libertarian

Blake Huber

No freely licensed photo on Wikimedia Commons.

Unity

Adam Withrow

Polymarket · John Hickenlooper (D) · 99¢. The contract price, not a forecast model.

Desk notes

Generated from the sourced figures on this page. Not a separate report.

John Hickenlooper (D) is the incumbent, running. The ratings consensus is Safe D. Cook’s cell is dated Oct 6, 2026. 10 forecaster cells are stored. Kalshi John Hickenlooper 99¢ (mid). Polymarket John Hickenlooper 99¢ (mid). The 2024 presidential margin in this state was D+11.0. The 2020 presidential margin in this state was D+13.5.

Polling average

No polling average for this race. That is an empty state, not a tie.

Ratings

Cook Political ReportOct 6, 2026Solid D
Sabato's Crystal BallOct 14, 2026Safe D
Inside ElectionsOct 15, 2026Solid D
Decision Desk HQOct 19, 2026Safe D
RealClearPoliticsOct 12, 2026Solid D
Silver BulletinOct 19, 2026Solid D
FiftyPlusOneOct 19, 2026Safe D
The EconomistOct 19, 2026Safe D
Fox NewsOct 13, 2026Solid D
Split TicketOct 19, 2026Safe D

Quoted from the Wikipedia predictions table, not scraped from the raters.

Markets

Raw yes-prices. Not vig-adjusted. Contracts under 1¢ are omitted.

KalshiKalshiOct 20, 10:14 AM EDT

John Hickenlooper99¢mid · spread 1¢

PolymarketPolymarketOct 20, 10:14 AM EDT

John Hickenlooper (D)99¢mid · spread 1¢
Mark Baisley (R)1¢mid · spread 1¢

PredictIt is off. Its terms limit the feed to non-commercial use.

Price history

through Oct 20, 9:44 AM EDT

WindowSep 20, 10:00 AM EDT

KalshiJohn Hickenlooper 99¢ at Oct 20, 9:44 AM EDT· Kalshi public candlesticks · 53 hours

PolymarketJohn Hickenlooper 99¢ at Oct 20, 9:44 AM EDT· Polymarket CLOB prices-history · 684 hours

PolymarketMark Baisley 1¢ at Oct 20, 9:44 AM EDT· hourly pull · 21 hours

Marker Oct 5, 8:00 PM EDT · Rating dated Oct 6, 2026

Marker Oct 18, 8:00 PM EDT · Rating dated Oct 19, 2026

Marker Oct 12, 8:00 PM EDT · Rating dated Oct 13, 2026

Marker Oct 14, 8:00 PM EDT · Rating dated Oct 15, 2026

Marker Oct 11, 8:00 PM EDT · Rating dated Oct 12, 2026

Marker Oct 13, 8:00 PM EDT · Rating dated Oct 14, 2026

Scale is fixed at 0–100¢. Hourly closes. A dashed line is a rating date or a poll end date stored on this race. Times are US Eastern.

Money

No FEC snapshot for this race.

Recent polls

No individual polls in this snapshot.

What changed

market
Colorado Senate: the stored prices were compared and no contract moved by a full cent.
market
Colorado Senate: the stored prices were compared and no contract moved by a full cent.
market
Colorado Senate: the stored prices were compared and no contract moved by a full cent.
market
Colorado Senate: the stored prices were compared and no contract moved by a full cent.

Results

Results appear here once official returns start on election night, November 3, 2026.

Counts will come from civicAPI, which compiles official state election offices. A winner is shown only when civicAPI projects one, labelled as such.

Official results: Colorado election office ↗

Updated Oct 20, 10:10 AM EDT · snapshot Oct 20, 10:10 AM EDT · mode live