DENVER–Colorado voters headed to the polls on Tuesday, voting on several key measures ranging from income taxes to hunting and fishing rights.
Below are unofficial results as of 12 p.m. on Wednesday.
Statewide
Amendment 83: Defeated with 55.16% to 44.8%
This measure would have added the right to hunting and fishing to the Colorado Constitution. It was opposed by animal rights groups and backed by hunting and fishing groups, as well as the Independence Institute.
Amendments seeking to add language to the Colorado Constitution require at least 55% of the vote to pass.
Amendment 87: Too close to call; 50.49% for and 49.51% against
The amendment would overhaul Colorado’s tax structure, eliminating the state’s flat tax in favor of a progressive income tax system that includes six income brackets, with the highest at 8.4%.
As Complete Colorado previously reported, several key Democrats including Gov. Jared Polis, Ken Salazar, and Phil Weiser opposed Amendment 87.
Independent Institute policy analyst Nash Herman has warned the new system will result in “bracket creep.”
“Initiative 195’s [now Amendment 87] six new marginal tax brackets are not indexed for inflation, meaning that as people’s incomes increase—partly from real increases in wages but largely due to inflation—they will be pushed into higher brackets over time, thus paying an ever-higher income tax rate, while the brackets stay at the same nominal level,” he said.
The amendment only needs a simple majority to pass since it’s removing language from the state constitution, rather than adding it.
Proposition 136: Not called, but the measure is losing with 47.34% for and 52.66% against.
The measure – a direct competitor to Amendment 87 – would cap Colorado’s income tax rate at the current 4.4%. It was put on the ballot by the conservative advocacy group Advance Colorado to compete against Amendment 87. It was also backed by Gov. Jared Polis, as well as the Independence Institute, which both also opposed Amendment 87.
Proposition NN: Passed with 55.41% to 44.59%.
This measure permanently increases the Taxpasyer’s Bill of Rights (TABOR) revenue cap. The surplus funding collected by the state would be spent on education for 10 years – with no details on spending after that – rather than refunded back to taxpayers.
Front Range
Ballot Issue 7A: Uncalled but leading with over 55% of the vote.
The measure, put on the ballot by the Front Range Passenger Rail District, increases sales taxes in the district by 0.333% – or $295 million a year – to fund the Colorado Connector (CoCo) rail project.
The ballot issue was mired in controversy leading up to the election as the measure appeared on over 800,000 ballots sent to voters who don’t reside in the district.
As Complete Colorado reported, the ballot issue’s designated election official, Brent E. Butzin, resigned after the mistake. He was also among the consultants listed in a recent report on the California High-Speed Rail Authority approving “unallowable” travel expenses for consultants, including Butzin.
Boulder County
County Issue 1A: Leading but uncalled with 58.36% to 41.64% of the vote.
The measure, referred to the ballot by Boulder County Commissioners, increases property taxes by 2.579 mills to fund child care.
Denver
Initiated Ordinance 311: Passed with over 66% support.
The measure bans the production and sale of the French delicacy foie gras. It was backed by the same animal rights groups behind the measure to ban the sale of fur products and ban slaughterhouses, which both failed in 2024.

