US Presidency
1832

These are the only causes alleged to justify an open opposition to the laws of the country and a threat of seceding from the Union if any attempt should be made to enforce them. The first virtually acknowledges that the law in question was passed under a power expressly given by the Constitution to lay and collect imposts; but its constitutionality is drawn in question from the motives of those who passed it. However apparent this purpose may be in the present case, nothing can be more dangerous than to admit the position that an unconstitutional purpose entertained by the members who assent to a law enacted under a constitutional power shall make that law void. For how is that purpose to be ascertained? Who is to make the scrutiny? How often may bad purposes be falsely imputed, in how many cases are they concealed by false professions, in how many is no declaration of motive made? Admit this doctrine, and you give to the States an uncontrolled right to decide, and every law may be annulled under this pretext.