A U.S. Supreme Court ruling Monday on redistricting lawsuits in Wisconsin and Maryland comes as several states already are considering changes to the criteria and processes that will be used to draw legislative districts after the 2020 Census.
In most places, the state legislature and governor are responsible for redistricting U.S. House and state legislative seats. More than a dozen states primarily use boards or commissions to redraw state legislative districts, and about a half-dozen do so for congressional districts.
Here's a look at proposed redistricting measures that already have been - or are likely to be - placed on ballots this year: