More: "Proposition 4 is the law in Utah on redistricting. H.B. 2004, the 2021 Congressional Map, which was not enacted under S.B. 200 and not Proposition 4, cannot lawfully govern future elections in Utah," Gibson wrote. "Use of H.B. 2004, the 2021 Congressional Map, in any future elections is hereby ENJOINED."

The ruling permanently blocks use of the GOP-drawn 2021 congressional map that split Salt Lake County into four districts, diluting the power of non-Republican voters.

"The Legislature intentionally stripped away all of Proposition 4's core redistricting standards and procedures that were mandatory and binding on it," Gibson added. "To permit the 2021 Congressional Plan to remain in place would reward the very constitutional violation this Court has already identified and would nullify the people's 2018 redistricting reform."

The court ordered lawmakers to redraw Utah's congressional districts under the rules of Proposition 4. They have until September 24 to deliver a compliant plan.

If they fail " or if the new map doesn't meet the law's standards " plaintiffs and other groups may submit their own maps for the court to consider.