Stanley Matthews, Embry v. Palmer — Opinion of the Court
“ As part of its general authority, the power to give effect to the judgment of its courts is co-extensive with its territorial jurisdiction. That the supreme court of the District of Columbia is a court of the United States, results from the right which the constitution has given to congress of exclusive legislation over the district. Accordingly, the judgments of the courts of the United States have invariably been recognized as upon the same footing, so far as concerns the obligation created by them, with domestic judgments of the states, wherever rendered and whereever sought to be enforced. ”
