Today, the Supreme Court hears two partisan gerrymandering cases, a Republican offense in North Carolina (Rucho v. Common Cause) and a Democratic offense in Maryland (Benisek v. Lamone). The outcome likely hinges on the vote of Chief Justice John Roberts (or Associate Justice Brett Kavanaugh…developing…).

In the Atlantic, I review how far the math has gotten in providing objective standards. Researchers have done great work. Even if the Court doesn’t use it, it’s still available for the use of state courts.