The preemption of state and local laws by federal laws is based on which clause of the U.S.Constitution?

Question

Quizplus · Accepted Answer

The Supremacy Clause, found in Article VI, Clause 2 of the U.S. Constitution, establishes that the federal constitution, and federal law generally, take precedence over state laws, and even state constitutions. It prohibits states from interfering with the federal government's exercise of its constitutional powers and from passing laws that conflict with federal laws.

The Preemption of State and Local Laws by Federal Laws