Mark Baisley
Recent media appearances
Top articles
Colorado PoliticsDemocrat John Hickenlooper wins 2nd term in Colorado U.S. Senate raceNov 3, 2026
Colorado PoliticsColorado U.S. Senate | Baisley looks to unseat HickenlooperOct 2, 2026
KUNCColorado candidates square off in Club 20 debates in Grand JunctionSep 23, 2026
Colorado PoliticsColorado Republican Mark Baisley exits gubernatorial race, launches U.S. Senate campaignJan 5, 2026
Overview
Mark Baisley is a Republican Colorado state senator from Woodland Park representing Senate District 4. He served two terms in the Colorado House beginning in 2018 before moving to the state Senate, and was previously vice chair of the Colorado Republican Party. coloradopolitics.com
An aerospace engineer who has worked for NASA and defense contractors, he runs Slipglass, a Littleton-based engineering software company, and co-chairs the state Senate's Aerospace and Defense Caucus. coloradopolitics.com coloradopolitics.com 2
He left the race for governor on January 5, 2026 to run for U.S. Senate, was unopposed for the Republican nomination, and faced Democratic Sen. John Hickenlooper in the general election. coloradopolitics.com coloradopolitics.com 2
Platform
- Proposes cutting federal taxes and rolling back regulations he says hurt jobs.baisleyforsenate.com
- Says legal immigration should stay at about 1.2 million people a year, with vetting to screen out violent applicants.baisleyforsenate.com
- Proposes lender incentives so first-time homebuyers can get mortgage rates tied to the 10-year Treasury yield.coloradopolitics.com
- Proposes using "Trump accounts" for newborns to help address Social Security's funding shortfall.coloradosun.com
- Supports adding tunnels and storage to move Western Slope water to the Front Range.coloradopolitics.com
- Says he supports temporarily suspending federal gas and diesel taxes.coloradosun.com