Colorado · U.S. Senate in Colorado · Updated Oct 16, 2026
Mark Baisley
Republican
State senator from the 4th district (2023–present) (previously ran for governor)
2026 race · U.S. Senate in Colorado
1% chance of winning · race rated Solid D
2% chance of winning · race rated Solid D
● John HickenlooperINC● Mark Baisley
Background
- Current office
- Colorado State Senate, SD-4
- Experience
- State legislature
- Past races on file
- 3 (3 won)
Links: Wikipedia · FEC filings · Candidate list (source)
Electoral history
Earlier races in Colorado, newest first, matched by name in the results archive.
- 2022Won
State Senate · SD-4 Nov 8, 2022
R · 60.8% · 55,595 votes
- 2020Won
House of Representatives · HD-39 Nov 3, 2020
R · 63.0% · 37,657 votes
- 2018Won
House of Representatives · HD-39 Nov 6, 2018
R · 62.6% · 29,289 votes
Fundraising
- Raised
- $138.2K
- From individuals
- $134.9K
- Spent
- $110.8K
- Cash on hand
- $28.2K
Money: FEC, through Sep 30, 2026.
Opponents in 2026
- John HickenlooperDemocraticIncumbent