The Supreme Court heard arguments Wednesday in Moore v. Harper, a case with far-reaching implications for voting rights. During three hours of debate, justices considered a bid by North Carolina Republican lawmakers to overturn a state Supreme Court ruling that redrew North Carolina’s congressional map due to partisan gerrymandering. The plaintiffs want the Supreme Court to embrace the independent state legislature theory, which would hand state lawmakers sweeping authority to override courts, governors and state constitutions. Lawyer Neal Katyal argued against the theory on behalf of North Carolina voting rights groups.