The Chief Justice proceeds. and then concludes upon that subject: Thus It Is seen that the right of passage of persons and property from one State to another can not be prohibited by Congress. But that does not challenge the legislative power of a sovereign nation to exclude foreign persons or commodities or place an embargo. perhaps not permanent. upon foreign ships or manufactures. Congress has the power. and it has exercised the power. to. prohibit the importation of Chinese coolies from China. Would the Senator from Indiana therefore argue that Congress has the power to prohibit the transportation of a class of persons from one State to another? It seems to me that. in addition to paying some attention to the identity of language in this constitutional provision. we should pay some attention to the subjectmatter.