Issue: Was the judgment granting Ogden an injunction inconsistent w/the Commerce Clause?
Holding: Congress had the power to enact the statute at issue in this case, NY monopoly preempted by federal law. Marshall said commerce was more than just traffic—intercourse (broad definition of commerce). Said commerce includes all aspects of business, which includes navigation. Said that “among” meant concerning more than one state. Also said that Congress could regulate as if there were no state governments. (rejected 10th A. arguments)
He did concede of possibility that there was a narrow field by which states could regulate.
- Completely internal or intra-state. (Shreveport Rate Case—travel b/w Marshall and Dallas)
- Which do not effect other states.
- It didn’t interfere w/any other general powers of the federal government. (Indirect) Congress has authority as court in Lottery Case to prohibit protective legislation from moving from one state to another.