David Josiah Brewer,
Barker v. Downey — Opinion of the Court
“ If the treaty was violated by this general statute enacted for the purpose of ascertaining the validity of claims derived from the Mexican government, it was a matter of international concern, which the two states must determine by treaty, or by such other means as enables one state to enforce upon another the obligations of a treaty. This court, in a class of cases like the present, has no power to set itself up as the instrumentality for enforcing the provisions of a treaty with a foreign nation which the government of the United States, as a sovereign power, chooses to disregard. ”
