| Election Date | State | Title | Outcome |
|---|---|---|---|
| Nov. 4, 2008 | Colorado | Amendment 46: Discrimination and Preferential Treatment by the State | Failed |
| Nov. 8, 2016 | Colorado | Amendment T: No Exception to Involuntary Servitude Prohibition | Failed |
| Nov. 6, 2018 | Colorado | Amendment A: Prohibit Slavery and Involuntary Servitude in All Circumstances | Passed |
| Nov. 3, 2020 | Colorado | Amendment 76: Citizenship Qualification of Electors | Passed |
| Election Date | State | Title | Outcome |
|---|---|---|---|
| Nov. 4, 2008 | Colorado | Referendum N: Elimination of Obsolete Constitutional Provisions Regarding Intoxicating Liquor | Passed |
| Nov. 8, 2022 | Colorado | Initiative 58 - Proposition 122: Colorado Decriminalization and Regulated Access Program for Certain Psychedelic Plants and Fungi Initiative | Passed |
| Nov. 3, 2026 | Colorado | Initiative 85: Colorado Penalties for Fentanyl Sale and Possession Initiative | Pending |
| Election Date | State | Title | Outcome |
|---|---|---|---|
| Nov. 5, 2024 | Colorado | Proposition KK: Firearms & Ammunition Excise Tax | Passed |
| Election Date | State | Title | Outcome |
|---|---|---|---|
| Nov. 2, 2010 | Colorado | Proposition 102: Criteria for Release to Pretrial Services Programs | Failed |