Should the federal government, state or local governments, or individual businesses offer contrition for slavery in other ways? If so, what ways and why? If not, why?

No, a  new state law overrules a federal law is not permitted. According to the constitution the law made under the authority of the United States , shall be the supreme law of the land. As a result of this all federal laws overrules the state laws, judges in every state are bound by the federal laws irrespective of what the state laws state. The federal government can pass laws that affect every state, state government obey treaties signed by the federal government and any new federal law will force the state to change Its existing laws.

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