Mark Baisley
Won the June 30, 2026 Republican primary
Mark Baisley is the Republican nominee for U.S. Senate. He is a current Colorado State Senator representing District 4 and previously served in the Colorado House of Representatives; he is not seeking re-election to his state Senate seat.[7]
Basic profile — the most important sourced facts we found.
On the record — official actions
- actionAs a Colorado state legislator, served on the Business, Labor, and Technology Committee, Senate Local Government and Housing Committee, and Technology Committee (2025-2026 session).[7]
- vote2025-05-06 · Voted no on SB25-130 (requiring hospitals and other emergency-care facilities to provide emergency medical services without denying or delaying care for a discriminatory or unlawful reason, codifying federal EMTALA-style anti-patient-dumping requirements), which the Senate repassed with House amendments 23-12 on May 6, 2025.[10]
- vote2024-03-15 · Voted no on SB24-003 (authorizing the Colorado Bureau of Investigation to investigate firearms crimes), which passed the Senate on third reading 21-10 on March 15, 2024.[11]
Positions on the issues
- MixedBroad tariffs on imported goods
Campaign material does not state a clear tariff position; emphasizes cutting federal taxes and regulation to boost domestic prosperity rather than broad tariffs specifically.[8]
- SupportsExpand immigration enforcement and deportations
Says the roughly 1.2 million people legally admitted to the U.S. each year should be vetted to ensure they are not violent, will be self-reliant, and will assimilate, and frames unauthorized immigration as something to be addressed under 'Natural Law' rather than expanded legal pathways.[8]
- SupportsIncrease police funding and staffing
Says he will work with law enforcement to give them the support and funding needed to keep communities safe.[8]
In their words — priorities
- Affordability and prosperity: says he will cut federal taxes, roll back regulations, and restore American energy dominance rather than rely on Washington mandates.[8]
- Public safety: says he will work with law enforcement on funding and support, and end programs he says return violent offenders to neighborhoods before rehabilitation.[8]
- Agriculture: proposes cutting red tape and costs for farmers and ranchers, releasing a 'Farm Prosperity Proposal' in July 2026.[8]
Background
- Born in Hastings, Minnesota; earned a B.S. in computer information systems/business administration from Columbia College.[7]
- Career experience includes serving as president of Slipglass, Inc. and Enspherics, a senior engineer at Raytheon, and a senior systems engineer at Martin Marietta.[7]
- Served in the Colorado House of Representatives, District 39 (2019-2023) before winning election to the Colorado State Senate, District 4, in 2022.[7]
- Served as vice chair and finance chairman of the Republican Party of Colorado.[7]
Campaign money
Raised $138K · spent $89K · $50K cash on hand (through 2026-06-30) FEC filing ↗