The Supremacy Clause. Someone else said: Preemption Clause of the Constitution makes the federal law trump state law but it does not necessarily render the state law invalid unless following state law would violate the federal law.
supremacy clause
When the Constitution conflicts with an act of the legislature, that act is invalid, establishing power of judicial review.
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Full preemption is a legal doctrine that occurs when federal law completely overrides state law in a particular area, preventing states from enacting or enforcing laws on that subject. This typically happens when Congress explicitly indicates an intent to occupy an entire regulatory field, thereby leaving no room for state laws. As a result, any state law that conflicts with the federal law is rendered invalid. Full preemption is often invoked in areas such as labor relations and environmental regulation.
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State law can be more detailed than federal law, but cannot conflict with federal law. Therefore, a state law cannot determine that a federal law is invalid. The state would have to, instead challenge the federal law as an unconstitutional intrusion on state rights.
An ID is considered invalid if it does not meet the required format or criteria set by the issuing authority, such as incorrect identification numbers, missing essential information, or expiration. Additionally, if the ID has been reported lost or stolen, or if the individual presenting it is not the rightful owner, it is deemed invalid. Lastly, if the ID is altered or counterfeit, it will also be rendered invalid.
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If a federal court declares a decision by a government official to be unconstitutional, it means that the official's action violates the principles set forth in the Constitution. As a result, the decision is rendered invalid and unenforceable. This ruling upholds the rule of law and ensures that government actions adhere to constitutional rights and protections. The official may be required to cease the unconstitutional action and may face legal consequences.