The question of the constitutionality of the formation of the new state was brought before the Supreme Court of the United States in the following manner.
As a lawyer he was engaged during his later years in most of the especially important cases in the Supreme Court of the United States and in the courts of Maryland.
i The decision of the Supreme Court of the United States in the case of Prigg v.
The status of the Isle of Pines was left an open question by the treaty of Paris, but a decision of the Supreme Court of the United States has declared it (in a question of customs duties) to be a part of Cuba, and though a treaty to the same end did not secure ratification (1908) by the United States Senate, repeated efforts by American residents thereon to secure annexation to the United States were ignored by the United States government.
In this office in 1863 he won before the Supreme Court of the United States the famous prize case of the "Amy Warwick," on the decision in which depended the right of the government to blockade the Confederate ports, without giving the Confederate states an international status as belligerents.