A bill to amend title II of the Immigration and Nationality Act to require mandatory detention of aliens who are physically present in the United States, but have not been admitted to the United States.

Overview

Bill S. 4593, introduced in the 119th Congress, seeks to amend Title II of the Immigration and Nationality Act to require mandatory detention of aliens who are physically present in the United States but have not been admitted to the United States. The bill has been introduced in the Senate and referred to the Judiciary Committee (as of the latest action history). It has several notable sponsors and co-sponsors, including Lindsey Graham, Tim Scott, Ted Budd, John Cornyn, and Marsha Blackburn.

Purpose and intent

• The central purpose of S. 4593 is to mandate detention for noncitizens who are physically present in the United States but have not been formally admitted or admitted and released under existing asylum or immigration processes.
• The bill aims to tighten the handling of individuals who, despite being physically present within U.S. territory, have not gone through formal admission procedures, by removing or reducing discretionary release options during detention proceedings.

Key provisions and changes (highlights)

• Mandatory detention requirement: Noncitizens physically present in the United States who have not been admitted would be subject to mandatory detention rather than discretionary release or alternative placement options.
• Scope of coverage: The provision targets aliens who are physically present but have not received formal admission into the U.S. under the INA. It may apply to individuals encountered at the border as well as those within the interior, depending on subsequent text (the summary here reflects the stated aim; the bill’s precise definitions would be in the enacted language).
• Detention standards: The bill would specify that detention is to be carried out under the authority and framework of Title II of the INA, potentially aligning with existing detention regimes while mandating detention in these circumstances.
• Appeals and due process: The bill would presumably maintain or set forth procedural steps for detainees to challenge detention or seek relief, consistent with INA processes, though explicit appellate or relief mechanisms would be detailed in the bill’s text.
• Administrative and enforcement alignment: Provisions may address enforcement coordination among federal agencies, funding implications, and operational guidelines to implement mandatory detention.

Affected parties and impacts

• Noncitizens physically present in the United States without formal admission: Directly impacted, as detention would be mandatory rather than discretionary.
• U.S. immigration enforcement agencies: Agencies responsible for detention operations and related administrative processes would be responsible for implementing the mandatory detention regime.
• Courts and detention review processes: The judiciary would be involved in any proceedings related to detention reviews, bond determinations, and potential relief mechanisms provided by the bill.
• Defenders, advocates, and affected communities: Opportunities and timelines for challenging detention, accessing counsel, and understanding changes to detention practices would be central to the bill’s impact.

Procedural and timeline aspects

• Introduction: The bill was introduced in the Senate and assigned to the Judiciary Committee.
• Action history: Read twice and referred to the Committee on the Judiciary on 2026-05-20.
• Next steps: If advanced, the committee could hold hearings, mark up the bill, and send it to the full Senate for consideration. Presidential action would depend on passage by both chambers and signing, veto, or override outcomes.

Considerations and potential implications

• Public safety and border management: Proponents may argue that mandatory detention improves control over nonadmitted individuals and enhances immigration enforcement.
• Civil liberties and due process: Critics may raise concerns about the potential for prolonged detention without admission or formal adjudication, and the impact on individuals’ rights.
• Detention capacity and funding: Implementation could require increased detention capacity, staffing, and resources; funding authorization would be a practical consideration.
• Legal and constitutional questions: The bill’s alignment with existing asylum, removal, and detention jurisprudence would be important, including any implications for indefinite detention or procedural rights.

If you’d like, I can pull the exact text of the bill and provide a line-by-line breakdown of definitions, detention standards, and any proposed funding provisions.