Colorado’s Own Court Just Killed the Democrats’ 7-to-1 Gerrymander — Before Voters Ever Saw It.

On Monday, June 29, 2026, the Colorado Supreme Court did something a Democratic-aligned campaign did not expect from a bench whose every sitting justice was appointed by a Democratic governor: it threw out, unanimously, the entire package of ballot measures Colorado Democrats had engineered to redraw the state’s congressional map in their own favor — and it did it before a single voter could weigh in.

In three opinions, the court ruled that Initiatives 240, 241, and 242 — the work of a committee called Coloradans for a Level Playing Field — each violated the Colorado Constitution’s single-subject requirement. The measures would have suspended the state’s voter-created independent redistricting commission and installed a map drawn to make Democrats favored in seven of Colorado’s eight U.S. House seats, up from the four they hold today, for the 2028 and 2030 elections.

The pitch was that this was self-defense against Republican gerrymanders in Texas and elsewhere. The problem was the mechanism: to fight a map they didn’t like, Colorado Democrats proposed to dismantle the nonpartisan map-drawing system their own voters had written into the constitution in 2018. The court said that is not one subject. It is two. And under Colorado law, that is fatal.

• 3 measures, 0 survive — the court struck down all three Democratic-backed initiatives — 240, 241, and 242 — in three opinions issued June 29, 2026 · Source: Colorado Sun; Colorado Politics
• Unanimous — no dissents; Chief Justice Monica Márquez wrote the lead opinion, Justice Richard Gabriel the opinion on 241 and 242 · Source: Colorado Politics; CPR News
• 7 of 8 seats — the target: a map making Democrats favored in seven of Colorado's eight U.S. House districts, up from the four they hold now · Source: CPR News; Colorado Sun
• Single subject — the constitutional rule the measures broke — bundling a brand-new map with a 'seismic shift' to the redistricting timeline · Source: Colorado Supreme Court, per Colorado Politics
• Amendments Y & Z (2018) — the voter-approved independent commission the initiatives sought to suspend — passed by Colorado voters eight years ago · Source: Ballotpedia; Colorado General Assembly
• Off the 2026 ballot — the ruling removes Colorado entirely from the national mid-decade redistricting fight for this cycle · Source: Courthouse News; The Hill

Colorado’s constitution forbids citizen ballot initiatives from containing more than one subject — a rule meant to stop drafters from smuggling an unpopular change through on the back of a popular one. The three measures all failed that test in the same way. Initiative 240, the comprehensive constitutional amendment, bundled two distinct things: a specific new congressional map, and a fundamental change to how often Colorado is allowed to redraw its districts.

Writing for a unanimous court, Chief Justice Monica Márquez (appointed by Gov. John Hickenlooper, D) held that the timeline change could not be waved off as a mere administrative detail. “Changing the constitutionally mandated frequency of redistricting — however temporary the change — is not merely a mechanism to administer the new congressional district map,” she wrote. It “represents a seismic shift to Colorado’s longstanding redistricting process enshrined in the state constitution.”

Democrats had anticipated that objection and tried to split the difference: Initiatives 241 and 242 were statutory measures designed to do the same work in two pieces — one to authorize mid-decade redistricting, one to adopt the map — with each written to take effect only if the other passed. In a separate opinion, Justice Richard L. Gabriel (appointed by Gov. Hickenlooper, D) said that workaround failed too: “When a measure’s effectiveness is expressly contingent on the passage of a separate and independent measure, the measure contains multiple subjects.”

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Strip away the procedural language and the plan was straightforward. Colorado has eight U.S. House seats. Democrats currently hold four of them. The map embedded in the initiatives would have redrawn those lines so that Democrats were favored to win seven, leaving a single safe Republican district — the Western Slope’s CO-4. The new lines would have governed the 2028 and 2030 elections. In a state President Trump lost and Democrats already dominate statewide, it was an aggressive bid to all but erase Republican congressional representation.

To get there, the measures had to neutralize the obstacle Colorado voters themselves had built. In 2018, voters passed Amendments Y and Z by wide margins, handing the job of drawing congressional and legislative districts to an independent commission — four Republicans, four Democrats, and four unaffiliated members, with any map requiring a supermajority that includes unaffiliated votes. The whole point was to take line-drawing out of the hands of whichever party held power. The 2026 initiatives would have suspended that system to let a partisan map through. That is the “seismic shift” the chief justice described.

The measures were pushed by Coloradans for a Level Playing Field, a Democratic-aligned committee tied to the national party’s mid-decade redistricting effort. Its spokesman, Curtis Hubbard, called the ruling “disappointing” and framed the defeat as a loss on “a technicality,” arguing that “while Trump and his MAGA allies regularly sidestep the law and ignore voters, efforts to respond have once again been dealt a legal setback.” It is a revealing complaint: the “technicality” was the Colorado Constitution’s single-subject rule, and the system being defended was the one Colorado voters built.

The effort had real statewide backing. Attorney General Phil Weiser (D), who is running for governor in 2026, had been the first statewide official to endorse a constitutional amendment allowing emergency redistricting, and U.S. Rep. Yadira Caraveo (D) had publicly urged Colorado to scrap its independent commission and redraw the map. On the other side, attorney Scott Gessler (R), a former Colorado secretary of state who represented proponents of a competing pro-GOP measure that was also tossed, said the court “soundly rejected the Democratic efforts to manipulate the ballot process to overturn Colorado’s nonpartisan redistricting process.”

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“Changing the constitutionally mandated frequency of redistricting — however temporary — represents a seismic shift to Colorado's longstanding redistricting process enshrined in the state constitution.”

Chief Justice Monica Márquez, writing for a unanimous Colorado Supreme Court

Colorado’s measures did not appear in a vacuum. In 2025, at President Trump’s urging, Texas redrew its congressional districts mid-decade to target five additional Republican seats; California countered with its own partisan map, and Missouri, Ohio, North Carolina, and Utah followed with mid-decade moves of their own. The U.S. Supreme Court allowed the Texas map to proceed. Colorado Democrats wanted in on the arms race — and that ambition is exactly what ran into a wall built by Colorado’s own voters.

There is a deeper irony the ruling exposes. The independent commissions Colorado created in 2018 were sold — correctly — as a reform that removes partisan self-dealing from map-drawing. When that structure threatened to cost the majority party seats it wanted, the same political coalition that benefits from reform’s good-government branding moved to suspend it. The court’s message was that you do not get to keep the “independent” label while dismantling the independence on a single ballot line.

A Democratic-aligned committee in a Democratic-leaning state asked a court of Democratic-appointed justices to let voters suspend the nonpartisan redistricting commission those same voters had created — so the majority party could draw itself up to seven of eight seats. The court said no, unanimously, on the plainest available ground: you cannot bundle a partisan map and a rewrite of the constitution’s redistricting rules into one ballot question. The defenders called it a “technicality.” In a state that built its map-drawing reform precisely to stop this kind of power grab, it was the rule working as designed. We will update this page if proponents refile a single-subject version for a future cycle.

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