Colorado Primary System Challenge
PARABLE v. Griswold
Lawsuit challenging Colorado’s open primary election system, which allows unaffiliated voters to cast a ballot in any party’s primary.
Court Cases
Learn about the legal efforts shaping the fight to protect voting rights. Use the filters to find out what cases are happening in your state or use the drop-down menu to sort cases by topic.
Arizona Mail-in Voting Challenge I
Arizona Republican Party v. Hobbs
Lawsuit filed on behalf of the Arizona Republican Party and a Republican voter filed a lawsuit challenging the state’s mail-in voting laws.
Maryland Congressional Redistricting Challenge (Parrott)
Parrott v. Lamone
Lawsuit filed by the conservative group Judicial Watch on behalf of a group of Republican voters challenging Maryland’s new congressional map.
Maryland Congressional Redistricting Challenge (Szeliga)
Szeliga v. Lamone
Lawsuit filed on behalf of two Republican House of Delegates members and multiple Republican voters challenging Maryland’s new congressional map enacted following the release of 2020 census data.
Louisiana Impasse Litigation (Bullman)
Bullman v. Ardoin
Lawsuit brought by individual voters challenging Louisiana’s current congressional map after Gov. John Bel Edwards (D) vetoed the new map.
Louisiana Impasse Litigation (NAACP)
NAACP Louisiana State Conference v. Ardoin
Lawsuit filed on behalf of the Louisiana State Conference of the NAACP and others challenging Louisiana’s current congressional map following the release of 2020 census data.
Missouri Impasse Litigation (Berry)
Berry v. Missouri
Lawsuit filed in state court on behalf of a Republican challenging Missouri’s current congressional map following the release of 2020 census data.
Pennsylvania At-large Congressional Elections
Toth Jr. v. Chapman
Lawsuit filed on behalf of four Republicans challenging the state court system’s ability to draw new districts after the Legislature failed to do so.
Michigan Legislative Redistricting Challenge (LWV)
League of Women Voters of Michigan v. Independent Citizens Redistricting Commission
Lawsuit filed in the Michigan Supreme Court against the state’s new districts for the Michigan House of Representatives.
Ohio Redistricting Challenge (Simon)
Simon v. DeWine
Lawsuit challenging the Ohio’s newly-enacted congressional and state Senate maps.