
Mark Baisley
Mark Baisley ran for U.S. Senate in CO in 2026 as a Republican (lost).
American politician (born 1955)
Ran for U.S. Senate, CO, 2026 · Lost to John Hickenlooper (Democratic), 35.0% to 60.5%. Unofficial result, not yet certified. State results feed, read 2026-11-13
On the Colorado ballot, Nov 3, 2026 U.S. Senate, 6 names on the official list. Election Day has passed; see the ballot as it was.Do you approve of Mark Baisley?
No reader votes yet. Yours would be the first.






Illustration by Vugol.me, adapted from Colorado Senate GOP · Public domain · Wikimedia Commons
Races
- 2026 · U.S. Senate, CO · General · Republican · on the ballot
- 2022 · State Senate, CO District 4 · Primary · Republican · won · 27,038 votes (100.0%) · source
- 2020 · State House / Assembly, CO District 39 · General · Republican · won · 37,657 votes (63.0%) · source
- 2020 · State House / Assembly, CO District 39 · Primary · Republican · won · 15,038 votes (100.0%) · source
- 2018 · State House / Assembly, CO District 39 · General · Republican · won · 29,289 votes (62.6%) · source
- 2018 · State House / Assembly, CO District 39 · Primary · Republican · won · 10,079 votes (100.0%) · source
Background
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.
More
Previously, he represented Colorado House of Representatives District 39, which encompassed parts of Douglas County and all of Teller County. He is the Republican nominee in the 2026 U.S. Senate election in Colorado, challenging incumbent Democrat John Hickenlooper.
Campaign finance
As of 2026-10-14 · Source: FEC
Website and social
Sources
- Background, Wikipedia, CC BY-SA 4.0, retrieved 2026-10-31 https://en.wikipedia.org/wiki/Mark_Baisley
- Roster, FEC filing https://www.fec.gov/data/candidate/S6CO00507/
- photo_gallery https://www.markbaisley.com/
- photo_headshot https://commons.wikimedia.org/wiki/File:Mark_Baisley_(cropped).JPG
- photo_gallery https://commons.wikimedia.org/wiki/File:Mark_Baisley_in_2024_(cropped).jpg
- photo_gallery https://commons.wikimedia.org/wiki/File:Mark_Baisley.JPG
- photo_gallery https://www.markbaisley.com/
Is this you?
If you are Mark Baisley (or their campaign), sign in to claim this profile free and add your photo, bio and platform.
Sign in with your campaign email address, the one published for this campaign, or any address on your campaign website’s domain, and your claim is verified instantly. Other claims are identity-checked by our staff first.