Question

What happens when a state law violates the u. S. Constitution.

Answer 1

In any situation where any State and the Federal Government have a conflict, the Federal Government wins every time no matter what.

Answer 2

When state law and federal law conflict, federal law displaces, or preempts, state law, due to the Supremacy Clause of the Constitution. ... Preemption applies regardless of whether the conflicting laws come from legislatures, courts, administrative agencies, or constitutions.