Federal race · November 3, 2026
U.S. Senator
U.S. senators represent Colorado in the U.S. Senate, voting on federal legislation and budgets, confirming presidential nominees, and ratifying treaties.
6-year term. Regular election for the full six-year term beginning Jan. 3, 2027. Incumbent Sen. John Hickenlooper (D) is seeking a second term. Six candidates are printed on the ballot. Certified write-in candidates (not printed on the ballot): Donald Willoughby (Unaffiliated), Will Powers (Republican) and Ryan Apelbaum (Republican).
The candidates
Listed alphabetically by last name.
Mark Baisley
Colorado State Senator, District 4 (since 2023)Baisley is a former aerospace engineer and software company leader who has served in the Colorado legislature since 2019, first in the House and now in the Senate. He left the 2026 governor's race in January to run for U.S. Senate and was unopposed in the Republican primary. His campaign focuses on reducing the size of government, property taxes, homeownership costs, water storage and immigration enforcement.
Christopher Baum
Retired U.S. Navy officer and computer network administratorBaum is a retired Navy officer, former small business owner and computer network administrator who ran for U.S. House in Colorado's 8th District in 2024. In a 2022 candidate survey he said his priorities were changing the voting system to help third-party candidates, election integrity, and smaller government. He had not published 2026 positions as of this research.
Bob Chew
Founder and former CEO of an engineering services company; Navy veteranChew is a Navy veteran and chemical engineer who co-founded an engineering services company and is running in his first campaign for public office beyond a school board race decades ago. He describes himself as an independent alternative to the two major parties and focuses on Social Security, health care costs and the national debt.
John Hickenlooper
U.S. Senator from Colorado (since 2021)Hickenlooper is a former geologist and brewpub owner who served as mayor of Denver and two terms as governor before winning his Senate seat in 2020. He won the June 2026 Democratic primary over state Sen. Julie Gonzales. His campaign focuses on lowering prices, health care costs, public lands, and opposition to Trump administration policies on tariffs and immigration enforcement.
Huber is the Libertarian Party nominee for U.S. Senate. He previously ran for Colorado Secretary of State in 2018 and for president in 2020 and 2024, and was the Approval Voting Party's vice-presidential candidate in 2016. No 2026 campaign website or platform could be found for this research.
Adam Withrow
EducatorWithrow is an educator who ran for U.S. House in Colorado's 3rd District in 2024 as the Unity Party candidate. His campaign focuses on a federal living wage, a less interventionist foreign policy, universal health coverage, and a transition to cleaner energy.
Compare on the issues
Summaries of each candidate's stated positions. See each profile for sources and details.
| Issue | Mark Baisley Republican | Christopher Baum Approval Voting Party | Bob Chew Forward Party | John Hickenlooper Democratic | Blake Huber Libertarian | Adam Withrow Unity Party |
|---|---|---|---|---|---|---|
| Health Care | Describes the health care system as broken and supports restoring free-market forces, including Sen. Rick Scott's plan for health-savings-style accounts. | No public position found yet | Says the root cause of high premiums is the cost of care and calls for cutting fraud and adopting new technologies. | Says health care is "a right not a privilege." Supports a public option and Medicare negotiation of drug prices, and says the 2025 Medicaid and Affordable Care Act cuts should be restored as a step toward universal coverage. | No public position found yet | Supports universal health coverage, which his campaign says would cost less than half the defense budget. |
| Economy & Jobs | No public position found yet | No public position found yet | Calls for reducing deficit spending and the national debt, which he says drives up borrowing costs. | Supports labor unions and the PRO Act, calls for refunding tariff revenue he describes as illegal, and supports worker protections related to artificial intelligence. | No public position found yet | Supports a federal living wage tied to the Consumer Price Index, phased in starting with the most profitable companies. |
| Elections & Democracy | No public position found yet | Supports changing the voting system to help third-party candidates and says election integrity must improve (2022 survey). | No public position found yet | Supports overturning the Citizens United decision and says his campaign takes no corporate PAC money. | Supported commission studies of alternative voting methods such as approval voting and ranked-choice voting (2018 survey). | No public position found yet |
| Energy & Environment | Supports expanding water storage within existing interstate compacts, faster permits for storage facilities, and more tunnels to move Western Slope water to the Front Range. Supports expanding domestic energy production. | No public position found yet | No public position found yet | Opposes selling federal public lands, supports climate and science investments, and cites his work on Colorado River and Western water funding. | No public position found yet | Calls for a transition from fossil fuels to cleaner energy starting now. |
| Foreign Policy | No public position found yet | No public position found yet | Supports strong alliances, including NATO, backed by a strong defense. | Says he is working to end "Trump's war with Iran," which he says is raising gas prices. | No public position found yet | Opposes U.S. military intervention abroad and says the country should not try to "police the world." |
| Immigration | Supports a vetted legal immigration system of about 1.2 million people a year and stronger enforcement. Says he would encourage the Department of Homeland Security to "only use nonlethal force" when arresting people who interfere with enforcement. | No public position found yet | No public position found yet | Voted against additional ICE funding and says the agency must be "completely overhauled or shut down." Supports banning masks for ICE agents and raids at sensitive locations such as schools and hospitals, and a path to citizenship for DREAMers. | No public position found yet | No public position found yet |
| Taxes | Supports cutting federal taxes and regulations. Proposes removing property values from property tax calculations and cites his 2024 resolution aimed at "eliminating the wild swings in property taxes." | Describes himself as a free-market, limited-government advocate who favors reducing taxes and government at all levels (2022 survey). | No public position found yet | No public position found yet | No public position found yet | No public position found yet |
| Abortion | No public position found yet | No public position found yet | No public position found yet | Supports abortion rights, including restoring the protections of Roe v. Wade and protecting access to mifepristone. | No public position found yet | No public position found yet |
| Agriculture | Proposes a Farm Prosperity and Cost Relief Act, including making lease payments for farm equipment fully deductible, and favors "freer markets rather than expanded bureaucracy." | No public position found yet | No public position found yet | No public position found yet | No public position found yet | No public position found yet |
| Education | Proposes requiring universities that benefited from the federalization of student loans to use their endowments to address student debt. | No public position found yet | No public position found yet | No public position found yet | No public position found yet | No public position found yet |
| Guns | No public position found yet | No public position found yet | No public position found yet | Supports expanding background checks and banning assault weapons. | No public position found yet | No public position found yet |
| Housing | Proposes incentives for lenders so first-time homebuyers can get mortgage rates "pegged to the 10-year U.S. Treasury yield." | No public position found yet | No public position found yet | No public position found yet | No public position found yet | No public position found yet |
| Public Safety | Supports funding for law enforcement and ending programs that he says release violent offenders before they are rehabilitated. | No public position found yet | No public position found yet | No public position found yet | No public position found yet | No public position found yet |
| Social Security & Medicare | No public position found yet | No public position found yet | Says reforms are needed to keep Social Security solvent and avoid automatic benefit cuts. | No public position found yet | No public position found yet | No public position found yet |


