Simmons vs. Galvin was a challenge to the Massachusetts law which disenfranchises people with felony convictions from voting while they are incarcerated.In a 2-1 decision, the First Circuit Court of Appeals reversed that ruling and held that no claims can be brought against Massachusetts law under the Voting Rights Act.

The Center filed an amicus brief with the Ninth Circuit of the US Court of Appeals in support of the plaintiff's challenge to Arizona's statutory provision denying voting rights to individuals with felony convictions. Voting rights are withheld until those individuals have paid any court-ordered fees, fines, or restitution.