Colorado Supreme Court Blocks Democratic Mid-Decade Redistricting Plan
In a major setback for national Democrats’ efforts to counter Republican gerrymandering, the Colorado Supreme Court issued two unanimous rulings on June 29, 2026, blocking a series of ballot initiatives aimed at redrawing the state’s congressional map1 for the 2028 and 2030 elections.
The proposed measures (Initiatives 240, 241, and 242), backed by the group Coloradans for a Level Playing Field, sought to temporarily sideline the state’s independent redistricting commission and adopt a new map that would have likely given Democrats a commanding 7-1 advantage in Colorado’s eight U.S. House seats (up from the current 4-4 split).
The state’s seven justices—all appointed by Democratic governors—unanimously ruled that the initiatives violated the state constitution's strict single-subject requirement2. Writing for the court regarding the constitutional amendment (Initiative 240), Chief Justice Monica Márquez explained:
"The adoption of a specific map for the 2028 and 2030 election cycles is a distinct and separate subject from whether to temporarily allow this manner of mid-decade redistricting generally3."
Regarding the statutory initiatives, Justice Richard Gabriel ruled that splitting the proposal into two separate, contingent measures (one to allow mid-decade redistricting and another to adopt the map) also violated the single-subject rule because they were explicitly dependent on one another:
"When the effective date of one measure is made expressly contingent on the passage of a separate and independent measure, it is neither accurate nor complete to say that the subject of the first measure is the single subject."
The Broader Mid-Decade Gerrymandering War
The ruling deal a severe blow to Democrats' national strategy to claw back seats in the U.S. House of Representatives. Following a mid-decade redistricting wave initiated by Republicans in Texas, Missouri, North Carolina, Ohio, and Florida—and subsequent federal court rulings gutting key components of the Voting Rights Act—Democrats have scrambled to respond.
However, Democratic efforts have faced significant state-level judicial and procedural hurdles. The defeat in Colorado follows a similar ruling in May 2026 by the Virginia Supreme Court, which threw out a voter-approved map that favored Democrats.
Spokesperson Curtis Hubbard of Coloradans for a Level Playing Field criticized the court's decision, arguing that it leaves voters defenseless against national partisan maps:
"While Trump and his MAGA allies regularly sidestep the law and ignore voters, efforts to respond have once again been dealt a legal setback over a technicality."
-
An instance of Legislative deadlock pushes the final authority over voting maps to supreme courts. — State supreme courts remain the final arbiter over disputed voting boundaries and mid-decade municipal mapping efforts. ↩︎
-
An instance of A partisan mid-decade redistricting push cannot succeed without bypass-ready state-level constitutional amendments. — The mid-decade map-making campaign collapsed in court because the supportive ballot measures failed state constitutional single-subject rules. ↩︎
-
An instance of Electoral map-making is no longer a once-a-decade battle. — The litigation centers on a political push to establish continuous, mid-decade Congressional map revisions. ↩︎