Answer:
Missouri Compromise, measure worked out in 1820 between the North and the South and passed by the U.S. Congress that allowed for admission of Missouri as the 24th state. It marked the beginning of the prolonged sectional conflict over the extension of slavery that led to the American Civil War.
Explanation:
Which is based on the Supremacy Clause, federal law preempts state law, even when the laws conflict. Thus, a federal court may require a state to stop certain behavior it believes interferes with, or is in conflict with, federal law.
ummm wut? im gonna gooooo.
B..........................
