Whats an example of the supremacy clause coming up in a conflict between state and federal law?

worcester v. georgia, legal case in which the u.s. supreme court on march 3, 1832, held (5–1) that the states did not have the right to impose regulations on native american land. andrew jackson refused to enforce the ruling, the decision form the basis for most subsequent indian law in the united states.

photos creat an ovveral image of the civil war