Colorado Blockbuster: Redistricting Gambit Crushed

The dome of a state capitol building with flags flying against a blue sky

Colorado Democrats’ 2028 redistricting push just ran into a hard constitutional wall, and the state Supreme Court did not blink.

Quick Take

The Colorado Supreme Court unanimously blocked the proposed redistricting measures from the ballot.
The court said the plans violated the state constitution’s single-subject rule.
The proposals would have paused Colorado’s independent redistricting system and opened the door to new maps.
Backers were already too late to file a new version for the next election deadline.

Court Says the Measures Mixed Too Many Subjects

The Colorado Supreme Court ruled that the proposals tried to do too much at once. The justices said the measures would both change the redistricting process and approve new congressional maps, which made them unconstitutional under the state’s single-subject rule. The court’s opinion said that interlocking measures cannot be used to do indirectly what the constitution forbids directly.^[3]

The ruling hit Colorado Democrats at the worst possible time. The group behind the plans wanted to suspend the state’s independent congressional redistricting setup for the 2028 and 2030 elections, then use a new map that could have given Democrats an edge in the U.S. House. Colorado voters approved that independent process in 2018, and the court said the new plan could not sidestep it.^[2]^[3]^[11]^[13]

Why This Matters for Colorado Voters

This fight is bigger than one ballot fight. Colorado’s current congressional map comes from an independent commission created by Amendment Y in 2018, after voters said they wanted mapmaking taken out of politicians’ hands. That system was designed to limit partisan control and make the process more public and balanced.^[11]^[12]^[13]^[16]

Supporters of the new measures argued that Colorado should respond to Republican redistricting moves in other states. The filings described a temporary change that would let voters approve a new map for two election cycles before restoring the independent commission after the 2030 census. Conservative readers are likely to see the ruling as a win for the rule of law, since the court said even a political goal cannot override the constitution.^[2]^[3]^[4]^[7]

What Comes Next for Both Parties

The practical problem for Democrats is timing. Colorado ballot rules require initiative petitions to be submitted at least three months before the election, and the relevant deadline had already passed. That means the backers could not simply rewrite the plan and make another run at the November ballot. Any future effort would need to start over with a new measure that fits the single-subject rule from the beginning.^[4]

Colorado Supreme Court rejects congressional redistricting ballot measures in blow to Democrats’ 2028 plans https://t.co/hxgAnEeD1M https://t.co/FoTiVnsa0j

— The Denver Post (@denverpost) June 30, 2026

Republican opponents now have momentum, but the broader redistricting fight is not over. The same court decision may push Democrats toward a narrower proposal, a legislative change, or a new statewide campaign to alter the constitution. For now, the message from the bench was plain: if a measure tries to rewrite the mapmaking rules and the maps themselves, Colorado’s constitution will not allow it.^[1]^[3]