Gibbons v. Ogden · ¶61

Since, however, an exercising the power of regulating their own purely internal affairs, whether of trading or police, the States may sometimes enact laws, the validity of which depends on their interfering with, and being contrary to, an act of Congress passed in pursuance of the constitution, the Court will enter upon the inquiry, whether the *aws New-York,- as expounded by the highest tribunal of that State, have, in their application. y, r' to this case, come into collision with an act of Congress, and deprived a citizen of a right to which that act entitles him. Should this collision exist, it will be immaterial whether those laws ^ere passed in virtue of a concurrent power to regulate commerce with foreign nations and among' the several States,” or, in virtue of a power reguIate their domestic trade and police. In one case' and the other, the acts of New-York must yield to the law…

U. S. Reports, bound volume
U. S. Reports, volume 22, at 1 (Library of Congress) · transcription: Caselaw Access Project
Passage preview. Read in context for the complete text, notes and references.