evidence: The Supreme Court is "distinctly American in concept and function," as Chief Justice Charles Evans Hughes observed. Few other courts in the world have the same authority of constitutional interpretation and none have exercised it for as long or with as much influence. In 1835, the French political observer Alexis de Tocqueville noted the unique position of the Supreme Court in the history of nations and of jurisprudence. "The representative system of government has been adopted in several states of Europe," he remarked, "but I am unaware that any nation of the globe has hitherto organized a judicial power in the same manner as the Americans. . . . A more imposing judicial power was never constituted by any people." [...] Justice asserted that the Supreme Court's responsibility to overturn unconstitutional legislation was a necessary consequence of its sworn duty to uphold the Constitution. That oath could not be fulfilled any other way. "It is emphatically the province of the judicial department to say what the law is," he declared. [...] When the Supreme Court rules on a constitutional issue, that judgment is virtually final; its decisions can be altered only by the rarely used procedure of constitutional amendment or by a new ruling of the Court. However, when the Court interprets a statute, new legislative action can be taken.