The Supreme Court on Monday upheld Ohio’s voter purge law that allows the state to drop voters from the rolls if they do not vote in three consecutive federal elections and do not respond to a mailed postcard, creating a precedent for other states to adopt the same kind of voter elimination system. The 5-to-4 decision in Husted v. A. Philip Randolph Institute is the latest in an ongoing effort to restrict voting rights, reversing a 20th-century trend that sought to create a more representative electorate by safeguarding the right to vote for minorities. As Ari Berman, author of a recent history of voting rights, noted in the aftermath of the ruling, Ohio has purged over 2 million voters from the rolls since 2011, with black voters in the largest counties over twice as likely to be purged as white voters.