Since every state is free and independent from the Federal government
Interesting statement. And not quite right, I think.
Article VI, Section 2 of the US Constitution
This Constitution, and the laws of the United States which shall be made in pursuance thereof; and all treaties made, or which shall be made, under the authority of the United States, shall be the supreme law of the land; and the judges in every state shall be bound thereby, anything in the Constitution or laws of any State to the contrary notwithstanding.