In response to the legitimate appointment of Supreme Court justices they don’t like, some progressives are openly advocating to pack the court with several new justices. For over 150 years—more than half of America’s history—the number of Supreme Court justices has remained stable. For decades, both political parties have viewed court packing as a radically partisan step that would exert undue congressional and executive influence on the judiciary and crush American freedoms—until now. Court packing advocates point to the events outlined on this timeline to make court packing seem routine. But history’s few partisan attempts to change the composition of the Supreme Court offer no justification for packing the Court today.