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US Sanctuary Jurisdictions Lawsuits 2020

The federal government's lawsuits against sanctuary jurisdictions in the US since 2020, including the Justice Department's filings and the responses from local governments and advocacy groups.

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Jan 20, 2026

How have federal courts ruled on state or local sanctuary statutes, and which decisions most affect statewide policies?

Federal courts have balanced two durable doctrines — the federal government’s plenary power over immigration and the Tenth Amendment anti‑commandeering limit on forcing states to enforce federal law —...

Jan 15, 2026

What legal challenges have federal governments brought against sanctuary cities since 2020?

Since 2020 the federal government has reignited a multi-pronged legal campaign against so‑called sanctuary jurisdictions that includes civil lawsuits asking courts to invalidate local and state restri...