National: Red state and GOP efforts to purge voter rolls have been stymied | Salon
As a key deadline approaches next week on updating statewide voter rolls before the November election, it appears a controversial data-mining operation mostly used by red states to purge legitimate voters is withering, or at least dormant, in 2018. The Interstate Voter Registration Crosscheck program, known as Crosscheck, has been blasted in the press, academia,legal briefs, and federal court rulings for sloppy analytics that generate tens or hundreds of thousands of suspected duplicate voter registrations in member states. (It uses few data specifics, including common names, producing false positives.) Some of those states have used Crosscheck’s analyses to turn a bland voter roll bookkeeping process (removing dead people, people who moved) into a partisan cudgel. This June, a federal district court issued a restraining order against Indiana election officials to not use Crosscheck to prematurely purge its voter rolls.

