Question

under article 4 of the constitution, what laws supersede all others? local laws federal laws state laws

Explanation:

Under Article 4 of the U.S. Constitution (specifically the Supremacy Clause, though Article 4 also relates to state-federal relations), federal laws and the Constitution itself are the supreme law of the land, superseding state and local laws. The question asks which laws supersede all others, and federal laws (alongside the Constitution) hold this supremacy.

Answer:

federal laws