In a major setback for voting rights, the Supreme Court has ruled partisan gerrymandering cannot be challenged in federal courts. The decision came down in a 5-4 ruling on ideological lines with Chief Justice John Roberts writing the majority decision. In her dissent, Justice Elena Kagan wrote: “The practices challenged in these cases imperil our system of government. Part of the Court’s role in that system is to defend its foundations. None is more important than free and fair elections.” The decision will likely benefit Republicans since they control the majority of state legislatures, which draw election maps in most states.