Final answer:
The supremacy clause in Article VI of the Constitution establishes that the Constitution and federal law are the supreme law of the land. In conflicts between state and federal laws, the federal law prevails as long as it is within the constitutional authority of the national government. This helps maintain a unified body of laws across the country.
Step-by-step explanation:
The supremacy clause, found in Article VI of the Constitution, establishes that the Constitution and federal law are the supreme law of the land. This means that if there is a conflict between a state law and a federal law that is within the constitutional authority of the national government, the federal law prevails. The supremacy clause ensures that there is one body of laws that binds the entire country.
For example, in the case of marijuana use, although the federal government considers it illegal, some states have established laws allowing for medical or recreational use. However, the federal government has the power to enforce federal drug laws if it chooses to do so. The supremacy clause helps resolve conflicts between federal and state laws.