A group backed by Democratic former U.S. Attorney General Eric Holder wants one new majority-black congressional district in Alabama, Georgia and Louisiana in time for the 2020 general elections, according to new federal lawsuits filed Wednesday in each state.

The legal challenges, which are supported by Holder's National Redistricting Foundation, an affiliate of the National Democratic Redistricting Committee — a political action committee chaired by Holder — claim the new majority-minority districts are needed because each state’s current electoral maps violate the federal Voting Rights Act by depriving black voters of the ability to elect representatives of their choice.

Georgia Secretary of State Brian Kemp, Louisiana Secretary of State R. Kyle Ardoin and Alabama Secretary of State John Merrill are defendants in the filings, which note each state’s history of racially polarized voting and disenfranchisement of black voters.