Congress Moves on Sanctuary Ban as Maryland Weighs ICE Limits

As congressional Republicans push legislation to restrict or ban so-called “sanctuary” policies nationwide, the political ground may be shifting under state efforts—like those under consideration in Maryland—to limit cooperation with federal immigration authorities.

The debate comes as Gov. Wes Moore faces pressure from progressive lawmakers and advocacy groups to curb or eliminate Maryland’s participation in 287(g) agreements, which allow local law enforcement to coordinate with U.S. Immigration and Customs Enforcement (ICE). According to recent reporting by The Baltimore Banner, the administration has been weighing proposals that would further restrict such cooperation.

At the same time, Republicans in Congress are advancing what supporters call the “End Sanctuary Cities Act,” a proposal that would penalize or potentially hold accountable state and local officials who refuse to comply with federal immigration enforcement requirements.

If enacted, such a federal ban could create a direct collision with state-level legislation aimed at prohibiting cooperation with ICE.

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The Federal Push

On the Senate floor this week, lawmakers highlighted legislation that would condition certain federal funding on compliance with immigration enforcement and clarify that local jurisdictions cannot adopt policies that obstruct federal authorities.

Supporters argue the move is necessary to restore uniform enforcement of federal law.

“Immigration is a federal responsibility,” said Sen. Lindsey Graham during floor debate, emphasizing that federal statutes already require information-sharing in certain contexts.

Backers of the proposal contend that allowing states or counties to opt out of cooperation undermines public safety and creates uneven enforcement across the country.

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Maryland’s Legislative Tension

In Maryland, progressive lawmakers have introduced or discussed bills that would:

• Prohibit new 287(g) agreements
• Limit local law enforcement communication with ICE
• Prevent state resources from being used to assist federal immigration enforcement

Supporters of those measures argue they protect immigrant communities and encourage trust in local policing.

Critics counter that such policies risk shielding individuals who have committed serious crimes from federal removal proceedings and create legal exposure if Congress moves to override sanctuary protections.

If Congress were to pass a nationwide sanctuary ban, Maryland’s efforts to prohibit cooperation could face:

1. Preemption Challenges – Federal immigration law would likely supersede conflicting state statutes under the Supremacy Clause.
2. Funding Consequences – Federal grants tied to law enforcement or homeland security could be conditioned on compliance.
3. Litigation Risk – The state could face lawsuits or enforcement actions if policies are deemed obstructive.

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The 287(g) Question

The 287(g) program has long been controversial. It allows trained local officers to perform certain immigration enforcement functions under federal supervision.

Opponents argue it diverts local resources and damages community trust.

Supporters say it provides a lawful mechanism to identify and transfer individuals already in custody for serious crimes to ICE, rather than releasing them back into the community.

If Congress tightens federal requirements, Maryland lawmakers seeking to unwind or prohibit such cooperation may find their options constrained.

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A Constitutional Showdown?

Legal scholars expect that any sweeping federal ban on sanctuary policies would trigger immediate court challenges.

The key question would likely center on whether Congress is compelling states to enforce federal law (which courts have historically limited) or simply conditioning federal funds on compliance (which has been upheld in other contexts).

In past immigration disputes, courts have split over how far federal authorities can go in requiring state cooperation.

What makes the current debate different is the possibility that federal law could explicitly authorize consequences for elected officials who adopt non-cooperation policies—raising new constitutional questions.

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Political Implications in Maryland

For Gov. Moore and Democratic legislative leaders, the moment presents a balancing act.

Maryland’s Democratic majority has signaled sympathy toward limiting ICE partnerships. But a federal crackdown could complicate those efforts and put state officials at risk of legal and fiscal consequences.

For Republicans in Annapolis, the congressional push provides a political counterweight, allowing them to frame sanctuary limits as legally vulnerable and fiscally risky.

As the 2026 election cycle approaches, immigration policy is increasingly intersecting with state governance debates over crime, public safety, and federal authority.

Whether Congress ultimately passes a sanctuary ban remains uncertain. But if it does, Maryland’s efforts to restrict cooperation with ICE may quickly move from policy debate to constitutional battleground.

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