What does the Supremacy Clause affirm?

The Supremacy Clause, found in Article VI, Clause 2 of the United States Constitution, establishes that the Constitution, federal laws, and treaties made under its authority form the supreme law of the land. This means that when there is a conflict between federal and state laws, federal law prevails. This clause affirms the power of the national government by ensuring that it has the ultimate authority in legal matters when it comes to maintaining uniformity and coherence in the law across all states. Consequently, the Supremacy Clause is crucial in maintaining the hierarchical structure of law in the United States, thereby ensuring that federal laws take precedence over state laws in cases of conflict.