Voter caging

Voter caging involves challenging the registration status of voters and calling into question the legality of allowing them to vote. Usually it involves sending mail directly to registered voters and compiling a list from mail returned undelivered. Undeliverable mail is seen as proof that the person no longer resides at the address on their voter registration. The resultant list is then used by election officials to purge names from the voter registration rolls or to challenge voters' eligibility to vote on the grounds that the voters no longer reside at their registered addresses.^: 129

In the United States, the practice of purging voter rolls has been challenged by the American Civil Liberties Union, Fair Fight Action, and other voting rights advocates in the courts for perceived racial bias when minority neighborhoods are targeted, and some courts have declared such purging illegal under the Voting Rights Act of 1965. However, the practice remains legal in many states, and the U.S. Supreme Court rejected a 2018 legal challenge to Ohio's list-maintenance process.