American citizens are instrumental in carrying on a traffic in enslaved Africans, equally in violation of the laws of humanity and in defiance of those of their own country. The same just and benevolent motives which produced interdiction in force against this criminal conduct will doubtless be felt by Congress in devising further means of suppressing the evil.
James MadisonAs the Legislative, Executive, and Judicial departments of the United States are co-ordinate, and each equally bound to support the Constitution, it follows that each must in the exercise of its functions be guided by the text of the Constitution according to its own interpretation of it.
James Madison