All 65 Colorado House Seats Up for Election With Control at Stake

Larry Don Suckla said he supports uranium mining on the Western Slope, including near Nucla and Naturita, as a way to support nuclear energy; he argued that public lands should not be unnecessarily locked up.
In District 44, Republican incumbent Anthony Hartsook is a retired Army officer whose background also includes construction, small-business work and teaching. Democratic challenger Rick Bowness has worked in sports administration, communications and educational research, and moved to Parker in 2023.
District 51 Democrat Jacki Marsh cited her four consecutive terms as Loveland mayor, eight years in the role, and service on more than 15 city and regional boards and commissions as experience informing her approach to public policy.
Marsh identified Medicaid as the primary source of Colorado’s structural deficit and said the state should address rising health-care costs, including by considering universal coverage. On energy, she backed adding wind and solar, continuing hydropower, and exploring geothermal and small modular nuclear reactors.
In District 14, Ava Flanell was appointed by a vacancy committee in October 2025 to fill the seat. Her challenger, Sarah Emery, has called for changes to Colorado’s Taxpayer’s Bill of Rights framework to give the state more flexibility to meet demands on schools, infrastructure and public services.
All 65 seats in Colorado's House are up for election in November, with Democrats defending a 43-22 majority Denver Gazette. Key races show sharp contrasts on affordability, energy, and taxes. In House District 58, Republican Larry Don Suckla is positioned to win after the Democratic nominee withdrew and her replacement was disqualified over paperwork issues Colorado Politics.
Across the state, candidates differ on how to spend money, regulate business, and develop energy. Some races pit incumbents against challengers in suburban growth areas. Others feature open seats where both parties see opportunity. Education, housing costs, and transportation funding dominate the debate.
Republican Rep. Larry Don Suckla is favored to keep his House District 58 seat after Democrats' hopes faded. Democrat Susanna Smith won the June primary but withdrew from the race Colorado Politics. The party's replacement candidate was then disqualified due to a filing error. Suckla supports uranium mining on the Western Slope near Nucla and Naturita as a way to back nuclear energy Denver Gazette.
Suckla argues public lands should not be locked up unnecessarily. His position reflects broader Republican enthusiasm for energy development in rural Colorado. The District 58 outcome shows how procedural mistakes and candidate attrition can shift electoral math early in a campaign season.
House District 44 has become one of Colorado's fastest-growing suburban zones, and both parties are fighting hard Denver Gazette. Republican incumbent Anthony Hartsook is a retired Army officer with construction, small-business and teaching experience Colorado Politics. Democrat Rick Bowness moved to Parker in 2023 and has worked in sports administration, communications and educational research Denver Gazette.
The matchup reflects tension in suburban districts nationwide—growth strains schools and roads, while residents split on tax hikes to fund expansion. Hartsook's military and business background appeals to conservative voters. Bowness's civic engagement pitch targets those wanting fresh voices on education and growth planning.
In District 51, Democrat Jacki Marsh is running on eight years as Loveland's mayor and service on more than 15 city and regional boards. She identified Medicaid as the primary driver of Colorado's structural budget gap. Marsh said the state should address rising health-care costs, possibly including universal coverage options Denver Gazette.
On energy, Marsh backs wind and solar expansion, continued hydropower use, and exploration of geothermal and small modular nuclear reactors. Her platform blends fiscal discipline with public investment—a bet that suburban and growing areas want government services funded responsibly. The dual focus on health and clean energy reflects voter anxiety on two fronts.
In House District 14, Ava Flanell was appointed to fill a vacancy in October 2025 and is now seeking a full term Denver Gazette. Her challenger, Sarah Emery, is pushing to change Colorado's Taxpayer's Bill of Rights framework—a rule that limits state revenue growth. Emery argues the current structure blocks spending on schools, roads and public services Denver Gazette.
The TABOR fight shows how tax policy shapes Colorado races. Conservatives defend the spending cap as essential to fiscal health. Progressives say it starves vital services during growth periods. Flanell's appointment gives her an incumbent edge, but Emery's argument appeals to voters frustrated by classroom crowding and aging infrastructure.
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