Illegal Immigration & Interior Enforcement

lllegal immigration is a phenomenon confronted by many major immigrant-receiving countries, one that vexes policymakers and publics alike. While much of the focus may be on border enforcement, there are an array of interior enforcement policies aimed at identifying unauthorized immigrants for removal, including worksite enforcement, employment verification, jail-house screening, and state and local law enforcement activity. The research below delves into many facets of illegal immigration and enforcement occcuring away from national borders.

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Articles April 11, 2024 South American Immigrants in the United States By Julian Montalvo and Jeanne Batalova	Commentaries March 2024 As Europe and the United States Face Similar Migration Challenges, Spain Can Act as a Bridge By Anna Terrón Cusí and Andrew Selee
Articles March 27, 2024 The Limits of the Go-It-Alone Approach: U.S. Migration Management Increasingly Requires Other Countries’ Cooperation By Muzaffar Chishti and Colleen Putzel-Kavanaugh	Articles March 13, 2024 Frequently Requested Statistics on Immigrants and Immigration in the United States By Jeanne Batalova
Reports March 2024 Diverging Paths: The Impacts of COVID-19 on Migration in the Middle East and North Africa By Samuel Davidoff-Gore	Reports March 2024 Converging Crises: The Impacts of COVID-19 on Migration in South America By Luisa Feline Freier, Andrea Kvietok and Leon Lucar Oba
Reports March 2024 Coordination Breakdown: The Impacts of COVID-19 on Migration in Europe By Frey Lindsay	Articles March 6, 2024 Iran Faces Dwindling Water and Escalating Climate Pressures, Aggravating Displacement Threats By Javid Rostami and Arash Asad Paski

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Reports March 2024 Diverging Paths: The Impacts of COVID-19 on Migration in the Middle East and North Africa By Samuel Davidoff-Gore	Reports March 2024 Converging Crises: The Impacts of COVID-19 on Migration in South America By Luisa Feline Freier, Andrea Kvietok and Leon Lucar Oba
Reports March 2024 Coordination Breakdown: The Impacts of COVID-19 on Migration in Europe By Frey Lindsay	Reports February 2024 Outmatched: The U.S. Asylum System Faces Record Demands By Kathleen Bush-Joseph
Reports January 2024 Migration at the U.S.-Mexico Border: A Challenge Decades in the Making By Alan D. Bersin, Nate Bruggeman and Ben Rohrbaugh	Reports January 2024 Shifting Realities at the U.S.-Mexico Border: Immigration Enforcement and Control in a Fast-Evolving Landscape By Ariel G. Ruiz Soto, Colleen Putzel-Kavanaugh and Doris Meissner
Policy Briefs December 2023 What Role Could Digital Technologies Play in the New EU Pact on Migration and Asylum? By Lucía Salgado and Hanne Beirens	Reports November 2023 Immigration and Integration in the Ever More Diverse Houston Area By Valerie Lacarte, Michael Fix and Jeanne Batalova

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Spotlight

April 11, 2024

South American Immigrants in the United States

The South American immigrant population in the United States has grown at a faster rate than that of the overall foreign-born population, amid crises in Venezuela, Colombia, and elsewhere. Yet South Americans still account for only about one in ten U.S. immigrants. While they mirror the overall U.S. immigrant population in several demographic characteristics, there are some notable differences, as this article details.

Policy Beat

March 27, 2024

The Limits of the Go-It-Alone Approach: U.S. Migration Management Increasingly Requires Other Countries’ Cooperation

The U.S. immigration enforcement system increasingly depends on other countries to help halt irregular movements through the Americas and accept the return of unauthorized migrants. Foreign governments play a crucial and yet underappreciated role in migration management, and can either aid or frustrate U.S. border-control aims, as this article explores.

A naturalization ceremony at the White House.

Spotlight

March 13, 2024

Frequently Requested Statistics on Immigrants and Immigration in the United States

Immigration touches on many facets of life in the United States. Get the facts with this useful resource, which compiles in one place answers to some of the most often-asked questions about immigration and immigrants in the United States now and historically. This article contains essential data on the immigrant population, immigration levels, trends in immigration enforcement, and much more.

Afghan refugees in Iran's Semnan refugee settlement.

Feature

March 6, 2024

Iran Faces Dwindling Water and Escalating Climate Pressures, Aggravating Displacement Threats

Floods, heatwaves, and other extreme weather events have displaced hundreds of thousands of people in Iran, with repercussions for residents including the 3.4 million refugees and other forced migrants, who are restricted to climate-affected areas. Environmental challenges may also be pushing some people to move internationally. This article offers a rare look at the climate and migration dynamics in Iran.

A member of the Texas National Guard faces migrants in Eagle Pass, Texas.

Policy Beat

February 28, 2024

Standoff at Eagle Pass: A High-Stakes U.S. Border Enforcement Showdown Comes to a Small Texas Park

Rising tensions between Texas and the federal government have sparked fears of a constitutional crisis after the state deployed its National Guard to prevent the U.S. Border Patrol from conducting operations in a city park in Eagle Pass, with Texas Governor Greg Abbott saying the “invasion” of migrants triggered the need for action. This article provides an overview of the standoff and the larger context of current and past state-federal tensions over immigration enforcement.

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Explainers

April 2019

Explainer: Illegal Immigration in the United States

How has the size of the unauthorized population in the United States changed over time? How is illegal immigration changing, and where do unauthorized immigrants come from? This explainer answers basic questions about illegal immigration, the changing patterns from Mexico, and more.

Expert Q&A, Audio

October 19, 2023

Documenting the Migration Journey: African Kinship Dynamics in Europe

African migrants turn to the strength of kinship-based support systems in pursuit of stability as they settle in a European landscape that is sometimes made precarious by their legal status and shifting policies. This episode discusses use of the kinship networks, including to exchange or broker identity documents between migrants along the migration journey and at destination.

Video

September 18, 2023

20th Annual Immigration Law and Policy Conference

The 20th annual Immigration Law and Policy Conference, organized by MPI, Catholic Legal Immigration Network, Inc., and Georgetown University Law Center, features fresh, thoughtful policy and legal analysis, and discussion of some of the top immigration issues by leading government officials, attorneys, researchers, advocates, and other experts.

Video, Audio

July 25, 2023

Improving Communications in the Voluntary Return and Reintegration Network

This webinar explores the goals and target audiences for public-facing information campaigns on voluntary return and reintegration, how to evaluate dissemination gaps, and the risks associated with inadvertently issuing messages that are not trusted or are misunderstood.

Video

July 20, 2023

Straining under the Backlog: Fixing a U.S. Immigration Court System in Crisis

As the U.S. immigration court system struggles with record case backlogs, decisions take years, immigration enforcement is delayed, and wait times incentivize unauthorized arrivals. This discussion examines the factors that have driven the system to the point of crisis and possible fixes.

Expert Q&A, Audio

June 27, 2023

A Mixed Welcome: Haitian Migration within the Caribbean

MPI Senior Policy Analyst Valerie Lacarte speaks with experts Bridget Wooding and Louby George about migration of Haitians to the Dominican Republic and the Bahamas.

Recent Activity

Articles

September 30, 2021

Haitian Migration through the Americas: A Decade in the Making

The chaotic arrival of thousands of Haitians at the U.S.-Mexico border in September 2021 was the culmination of a journey through the Americas that began for many a decade ago. This article examines how Brazil became a refuge for many after Haiti’s devastating 2010 earthquake, and how Haitians then moved on to Chile and other countries as conditions changed, and then onward again further north.

Articles

September 22, 2021

Two Decades after 9/11, National Security Focus Still Dominates U.S. Immigration System

After the terror attacks of September 11, 2001 the U.S. immigration system was retooled to have a strong national security focus. This restructuring had dramatic effects on government operations and resource allocations, not to mention on the lives of immigrants and the U.S. born alike. Twenty years on from 9/11, this article examines the changes put in place or accelerated as a result of the attacks.

Policy Briefs

September 2021

Migration Management and Border Security: Lessons Learned

What strategic lessons can be learned from the migration- and border-management challenges North America and Europe have faced in recent years? This reflection by a former high-ranking homeland security official explores a range of timely issues, including the need to rethink multilateralism and improve international cooperation, address migrant smuggling, and engage in advanced planning to avoid future crises.

Video, Audio, Webinars

September 2, 2021

From Immigrant Detention to a More Effective U.S. Immigration Custody System

The sprawling U.S. immigration detention system has long been controversial for its conditions of care, number of immigrants and asylum seekers detained, and costs. This discussion of a report provides a vision for a reimagined immigration custody system.

Articles

August 26, 2021

Gang Membership in Central America: More Complex than Meets the Eye

Gang violence is a major driver of migration, particularly from Central America to the United States. But governments on both sides often rely on outdated and static understandings of gangs and their membership. This article explains the history of groups such as MS-13 and Barrio 18 and why they are relevant for immigration policy.

Reports

August 2021

From Jailers to Case Managers: Redesigning the U.S. Immigration Detention System to Be Effective and Fair

The U.S. immigration detention system is sprawling, expensive, and has long been criticized for its prisonlike conditions and health risks. The pandemic has brought these risks into even sharper focus. This report examines detention’s role in the U.S. immigration enforcement system and proposes a different approach centered on release with supervision and case management—tools that are less costly, more humane, and ensure compliance with immigration proceedings.

Commentaries

August 2021

Biden Administration Asylum Processing Revamp at the U.S. Border Could Be a Game Changer

The Biden administration’s proposed asylum processing rule represents a fundamental retooling of the asylum system that preserves asylum as a bedrock element of the U.S. immigration system while also recognizing that a secure border and deterring unlawful crossings are legitimate and necessary attributes of an effective, credible immigration system, as this commentary explains.

Articles

August 11, 2021

Central American Immigrants in the United States

The number of Central American immigrants in the United States has grown dramatically, amid political corruption, violence, and natural disasters in their native countries. But recent images of Central Americans arriving at the U.S.-Mexico border do not tell the whole story, with more than half the population arriving in 2000 or earlier. This article offers key data on the 3.8 million Central American immigrants in the United States.

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