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Index/Topics/Federal Supremacy Doctrines

Federal Supremacy Doctrines

The concept of federal supremacy in relation to state sanctions against federal officers.

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Jan 17, 2026
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Can ICE give you a lawful order if you are obstructing or impeding their lawful duties?

ICE can lawfully give orders to — and in narrow circumstances detain or arrest — U.S. citizens or others who are actively obstructing or impeding immigration enforcement, but that authority is limited...

Jan 22, 2026

Is it illegal for the governor of California to 1) take away licenses of ICE agents and 2) not allow employers to hire former ICE agents

A governor cannot unilaterally nullify federal law or order federal officers to stop performing federal duties; has recently moved to identifies itself and to bar masks in the field, but federal offic...