Federal vs State Law Supremacy

This cluster revolves around debates on whether federal law always trumps state law in the US, states' ability to ignore or refuse enforcement of federal laws, and examples like sanctuary cities, cannabis, and gun regulations. Discussions frequently reference the Supremacy Clause, anti-commandeering, and federal preemption.

➡️ Stable 0.6x Legal
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Comments
20
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#910
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Keywords

e.g US AWFUL DEA NN IL FBI USA cbsnews.com wikipedia.org federal federal law law state state law states laws trumps enforce il

Sample Comments

vdqtp3 Oct 11, 2021 View on HN

States don't enforce federal law.

bcheung Jun 29, 2016 View on HN

Does this mean states can refuse to accept federal laws?

Am4TIfIsER0ppos Apr 22, 2024 View on HN

Don't all states have the ability to ignore federal law (enforcement) leading to situations like sanctuary cities and legalized cannabis?

sampli Sep 22, 2025 View on HN

No, but federal law trumps state

dude187 Apr 2, 2024 View on HN

States enforce state law, not federal

dude187 Apr 2, 2024 View on HN

States enforce state law, not federal

charcircuit Dec 24, 2022 View on HN

If it's not legal federally it is not legal in any state due to the concept of federal supremacy

londons_explore Nov 19, 2019 View on HN

How can something be against federal law yet still allowed in some states? I thought federal law applied across the whole USA?

ceejayoz Jun 7, 2019 View on HN

State laws wouldn't apply. Only Federal.

mkr-hn Mar 19, 2013 View on HN

The law is federal. The extent of a state's ability to supersede federal law is an ongoing discussion in the courts.