As we celebrate the 50th anniversary of the Voting Rights Act, we should also celebrate the Supreme Court’s recent treatment of its protections.

In striking down Section 4(b) of the VRA in Shelby County v. Holder two years ago, the Supreme Court restored a measure of constitutional order. Based on 40-year-old voting data that don’t reflect current political conditions, this provision subjected a seemingly random assortment of states and localities to onerous unusual federal oversight.