U.S. Senate in Colorado
U.S. Senate · Colorado
John Hickenlooper won re-election by 25.3 points over Mark Baisley.
Source: Colorado Secretary of State unofficial results; race call: civicAPIUpdated Nov 7, 2026, 1:35 PM ET
Where the race moved
Against the 2024 presidential vote
Every county, 2024 to 2026
Each dot is a county, sized by votes cast and colored by who carried it in 2026. Dots above the line moved toward Hickenlooper compared with the 2024 presidential vote; 64 of 64 did. The largest shift among the bigger counties: Adams, +22.9 points.
Source: civicAPI county results (unofficial); 2024 president: MEDSL precinct returnsUpdated Nov 7, 2026, 1:34 PM ET
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)
By county
Show 56 more
Bar: share of the state's vote. Shift: change in margin from the 2024 presidential vote, + toward Democrats.
Source: civicAPI county results (unofficial); 2024 president: MEDSL precinct returnsUpdated Nov 7, 2026, 1:34 PM ET
Money in this race
Each line compares the two sides on one scale: their campaigns, and outside groups spending for them or against their opponent.
Top funders
Outside groups and direct contributors, ranked by what they put in; the color shows which candidate it helps.
| COMMON SENSE ACTION FUNDFor Hickenlooper | $300K | |
| OUR FUTURE COLORADOFor Hickenlooper | $195.3K | |
| National Association of Realtors Political Action CommitteeFor Hickenlooper | $14.8K | |
| Neighbor VoicesFor Hickenlooper | $1.9K |
Campaign money: FEC, through Oct 14, 2026. Outside spending: independent expenditures by super PACs, parties and other groups, primary and general, as reported to the FEC through Nov 1, 2026, updated Nov 3, 2026. It leaves out spending not reported as independent expenditures (most issue ads and much dark money), so it understates all outside money.
Source: FEC campaign filings; FEC independent expendituresUpdated Nov 3, 2026, 1:05 AM ET
Polls against the result
The final average had Hickenlooper ahead by 21.9. Hickenlooper won by 25.3: a 3.4-point miss toward Republicans.
- Poll with Hickenlooper ahead
- Poll with Baisley ahead
- Final polling average
- Result
| Pollster | Dates | Sample | Hickenlooper | Baisley | Margin | Adjusted | Miss vs result | Grade | Release |
|---|---|---|---|---|---|---|---|---|---|
| Research Co. | Oct 31–Nov 2 | 450 LV | 57 | 35 | D+22 | D+23.4 | −3.3 | A | researchco.ca ↗ |
| YouGov for University of Colorado American Politics Research Lab | Oct 9–Oct 20 | 710 LV | 57 | 39 | D+18 | D+17.9 | −7.3 | B | colorado.edu ↗ |
| Lake Research Partners for Ballot Initiative Strategy Center | Sep 16–Sep 30 | 600 RV | 52 | 38 | D+14 | D+12.8 | −11.3 | B+ | ballot.org ↗ |
Adjusted: after correcting for the pollster's house effect and likely-voter screens. Miss: the poll's margin minus the result; + means the poll leaned Democratic. Grade: the pollster's accuracy in past elections, A+ to D (pollster ratings).
Source: Each poll's release, via The New York Times and Wikipedia poll listsUpdated Nov 2, 2026
Pre-election forecast (final, Nov 3)
Our model's last run before Election Day, Nov 3, 2026. It no longer updates.
- John Hickenlooper
- >99%
- Mark Baisley
- <1%
- Projected margin
- D+22.3
The candidates
Incumbent U.S. senatorMark Baisley (R)
State senator from the 4th district (2023–present) (previously ran for governor)
Also on the ballot: Bob Chew (Forward), 2.6%; Blake Huber (Libertarian), 1.2%; Adam Withrow (Other party), 0.5%; Christopher Baum (Other party), 0.2%
Also on this ballot here
| Governor | D+27.7 |
| Attorney General | D+17.8 |
| Secretary of State | D+23.2 |
| Treasurer | D+20.1 |
Results within this state. Source: Results and race calls: Colorado Secretary of State and civicAPI (unofficial)Updated Nov 7, 2026, 1:35 PM ET
Changes to this page
- · Race called for Hickenlooper.