Unauthorized Immigration/Irregular Migration
Explore all research, analysis, commentary, and data on unauthorized immigrants and irregular migrants, terms used in different parts of the world to describe the individuals who lack the right to reside legally in their country of destination, as well as the policies and enforcement practices affecting them.
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Inmigrantes centroamericanos en los Estados Unidos
En 2023, más de 4.3 millones de centroamericanos vivían en Estados Unidos, con altas tasas de participación en la población activa, pero con importantes desigualdades en materia jurídica, educativa y económica.
Beyond ICE: State and Local Authorities Become Central to Trump Administration Deportations Strategy
The Trump administration is deputizing state and local officers at record scale, reshaping U.S. immigration enforcement through 287(g) agreements, new funding, and legal pressures.
Making Migrant Return and Reintegration Sustainable: Lessons from two continents
This conversation explored emerging models, policy shifts, and lessons learned from the European and Latin American approaches to reintegration and support for returning migrants.
Can the Trump Administration’s “Self-Deportation” Campaign Succeed?
The Trump administration's “self-deportation” campaign pairs incentives for immigrants to leave with threats of steep fines and arrests for staying. Historical precedents suggest limited voluntary uptake.
Small Boats, Big Stakes: Options for a UK-EU deal on migration and asylum
Small boat crossings to the United Kingdom have surged since 2018; a post-Brexit readmissions deal with the EU, paired with managed pathways, could help address them.
Can Near-Historic Low Migrant Encounter Levels at the U.S.-Mexico Border Be Sustained?
Migrant encounters at the U.S.-Mexico border have fallen to lows not seen since the 1960s. But can this trend continue amid a sharp policy shift to a deterrence-focused approach, setting aside a carrot-and-stick migration management strategy? This short read looks at the evidence.
The Health Costs to Children of Stepped-Up U.S. Immigration Enforcement
Evidence suggests heightened U.S. immigration enforcement will have major and lasting effects on the physical and mental health of unauthorized immigrants and their children.
Seeking to Ramp Up Deportations, the Trump Administration Quietly Expands a Vast Web of Data
The Trump administration is building an unprecedented data network for immigration enforcement—tapping sensitive tax, health, and benefits records—raising privacy concerns for immigrants and citizens alike.
Denmark’s Turn to Temporary Protection Has Made It a Pioneer in Restrictive Immigration Policies
Denmark has pioneered some of Europe's most restrictive humanitarian migration policies under a center-left government, making temporary protection the norm and inspiring neighbors to follow.
Facing New Migration Realities: U.S.-Mexico Relations and Shared Interests
U.S.-Mexico cooperation reduced unauthorized migration from 2020 to 2024; lasting progress hinges on legal pathways, regional engagement, and border infrastructure.
