Montana has five districts, each one to elect a Public Service Commissioner. On March 8, a 3-judge U.S. District Court struck down the boundaries of the districts, because their populations are far from equal. The most populous district has 24% more population than the least populous district.

Here is the decision in Brown v Jacobsen, 6:21cv-92. The Court set forth new boundaries for each of the five districts. The state legislature is free to change them in 2023, but for the 2022 election, the districts drawn by the ruling are in place.

The reason the old districts were so unequal is that they were last drawn after the 2000 census.