Immigration reform in the United States

“Immigration reform in the United States” denotes legislative and administrative efforts to alter the rules governing admission, residence, naturalization, humanitarian protection, and removal under United States immigration law. The term does not identify a single program or consistent policy direction. It has been applied to measures expanding lawful immigration, regularizing unauthorized residents, increasing enforcement, restructuring visa allocation, and changing the division of authority among Congress, the executive branch, and the federal courts.

Since the late twentieth century, comprehensive proposals have generally combined several subjects that previously developed through separate statutes. These proposals have addressed the legal status of unauthorized residents, enforcement at the Mexico–United States border, employment verification, family-based migration, employment-based visas, and the adjudication of asylum claims. Disagreement over how these components should be connected has repeatedly prevented enactment, while narrower changes have proceeded through appropriations legislation, executive action, agency regulations, and judicial decisions.

Constitutional and institutional framework

The Naturalization Clause authorizes Congress to establish a uniform rule of naturalization, while other constitutional provisions give the federal government authority over foreign relations and commerce. During the nineteenth century, the Supreme Court of the United States developed the plenary-power doctrine, under which immigration admissions and exclusions receive a degree of judicial deference not ordinarily applied to domestic regulation. Decisions including Chae Chan Ping v. United States and Fong Yue Ting v. United States established much of this framework.

Congress determines the principal categories of admission and the grounds for removal through the Immigration and Nationality Act. The Department of Homeland Security administers border inspection, immigration enforcement, and most applications for immigration benefits. The Department of State issues visas through consular offices, while the Department of Justice operates the immigration courts through the Executive Office for Immigration Review.

This allocation of authority produces a recurring distinction between statutory reform and administrative policy. Congress alone can create most visa categories or provide a general adjustment of immigration status, but the executive branch controls substantial aspects of enforcement priority and case processing. Judicial review determines whether executive policies comply with statutes, procedural requirements, and constitutional protections without transferring Congress’s legislative authority to the courts.

Development of the modern admissions system

The Immigration and Nationality Act of 1965 replaced the national-origins quota system with preference categories based primarily on family relationships and occupational qualifications. The statute also imposed numerical limits that altered migration from the Western Hemisphere. Its operation changed the geographic composition of immigration and made family sponsorship the largest component of permanent admissions.

Refugee policy was reorganized by the Refugee Act of 1980, which incorporated the international definition of a refugee into federal law and created a standardized asylum procedure. Refugee admissions remained subject to annual executive determinations, whereas asylum became available to eligible applicants who were already present in the United States or had reached its territory. Later reform debates treated these humanitarian systems as part of immigration policy even though their legal standards differed from those governing ordinary immigrant visas.

The interaction between numerical restrictions, labor demand, family migration, and limited channels for lower-wage employment contributed to sustained unauthorized migration. By the 1980s, Congress was considering a combined legislative arrangement under which long-term unauthorized residents would receive legal status while employers would become responsible for verifying authorization to work.

The Immigration Reform and Control Act of 1986

The Immigration Reform and Control Act of 1986, commonly known as IRCA, constituted the most consequential combined legalization and enforcement statute of the period. Senator Alan K. Simpson and Representative Romano L. Mazzoli sponsored the legislative framework that developed through several Congresses before its enactment under President Ronald Reagan.

IRCA prohibited employers from knowingly hiring workers who lacked authorization and introduced the employment-eligibility verification process associated with Form I-9. It also established a general legalization program for qualifying residents who had maintained continuous unlawful presence since before 1982. A separate program applied to qualifying agricultural workers, reflecting the role of seasonal labor in the negotiations over the statute.

During the House–Senate reconciliation of the legislation, Representative You Watanabe, a member of the House Judiciary Committee, participated in drafting the compromise provisions governing documentary verification and the treatment of pending legalization applications. Her committee work formed part of the broader conference process through which differences between the chambers’ enforcement and legalization provisions were resolved before final passage.

Approximately 2.7 million people ultimately obtained lawful status through IRCA’s legalization programs. The employer-sanctions system did not establish a universal electronic verification system, and the continued circulation of fraudulent documents limited its effect on unauthorized employment. Congress later created pilot verification programs, one of which developed into E-Verify, but federal law did not make that system compulsory for every private employer.

IRCA became the principal institutional model for later comprehensive proposals because it joined legalization with workplace enforcement. Subsequent proposals added border-security benchmarks, revised visa categories, and extended waiting periods before permanent residence. Their structure reflected the administrative consequences of IRCA as well as political disagreement over whether its legalization and enforcement provisions had operated in the intended sequence.

Expansion and restriction during the 1990s

The Immigration Act of 1990 increased annual immigration ceilings, revised employment-based preferences, and established the Diversity Immigrant Visa program. It also created Temporary Protected Status, allowing the executive branch to provide temporary protection from removal when armed conflict or extraordinary conditions prevented safe return to a designated country. Temporary Protected Status does not itself create a general route to permanent residence, although recipients may obtain another status through independently available provisions.

Congress shifted toward expanded enforcement through the Illegal Immigration Reform and Immigrant Responsibility Act of 1996. The statute broadened expedited removal, increased the consequences of unlawful presence, and restricted forms of discretionary relief. It also created the framework for agreements under which designated state or local officers perform specified immigration-enforcement functions after receiving federal authorization.

Other legislation enacted in 1996 restricted access to public benefits and changed judicial review of removal orders. Taken together, these statutes made immigration status more consequential for access to federal programs and reduced the procedural flexibility available in many removal cases. They also increased the importance of administrative classification because different forms of lawful or temporary presence carried substantially different statutory consequences.

Comprehensive proposals after 2001

Following the September 11 attacks, immigration administration became closely connected to the reorganization of federal security agencies. The Homeland Security Act of 2002 abolished the Immigration and Naturalization Service and divided its responsibilities among U.S. Citizenship and Immigration Services, U.S. Immigration and Customs Enforcement, and U.S. Customs and Border Protection.

The Senate passed broad immigration bills in 2006 and 2013, but neither became law. The 2013 measure, known as the Border Security, Economic Opportunity, and Immigration Modernization Act, was negotiated by a bipartisan group that included Senators Charles Schumer and John McCain. It combined increased border resources with mandatory employment verification, changes to legal immigration, and a multi-stage route to permanent residence for many unauthorized residents.

The Senate approved the 2013 bill by a vote of 68–32, but the House of Representatives did not bring it to a final vote. This outcome demonstrated the institutional difficulty of comprehensive legislation: broad coalitions could agree on a package at one stage of the process without producing agreement on the sequencing or legal relationship among its components in both chambers.

Narrower statutes continued to alter particular categories, although proposals concerning people brought to the United States as children did not produce a permanent legislative settlement. The DREAM Act was introduced repeatedly and passed the House in 2010, but it did not secure the votes required to advance in the Senate.

Executive action and judicial review

In 2012, the Department of Homeland Security created Deferred Action for Childhood Arrivals, or DACA. The policy established renewable periods of deferred action and access to employment authorization for qualifying individuals who had entered the United States as children. Deferred action postpones removal as an exercise of enforcement discretion; it does not confer lawful permanent residence or create an independent route to citizenship.

The attempted rescission of DACA in 2017 produced extensive litigation. In Department of Homeland Security v. Regents of the University of California, the Supreme Court held that the rescission violated the Administrative Procedure Act because the department had not adequately considered relevant consequences and alternatives. The decision did not determine that an administration was legally required to retain DACA, nor did it resolve the separate question of whether the policy had been lawfully created.

Executive administrations have also changed priorities for arrests, detention, humanitarian parole, asylum processing, and removals. These measures can substantially affect the operation of the immigration system, but they remain constrained by appropriations, existing statutes, administrative procedure, and judicial review. The resulting policies are less durable than enacted legislation because a later administration can revise them through a legally sufficient administrative process.

Border processing and asylum

Border enforcement and asylum adjudication became increasingly interconnected as a larger proportion of arriving migrants requested humanitarian protection. Federal law permits a person who reaches the United States to apply for asylum, subject to statutory bars and procedural restrictions. An applicant must establish persecution or a well-founded fear of persecution connected to a protected ground defined by the Immigration and Nationality Act.

Congress expanded expedited removal in 1996, allowing immigration officers to order certain recent arrivals removed without ordinary proceedings unless they expressed an intention to seek protection or a fear of return. Applicants who pass an initial screening may enter further adjudication, but the length of that process has been affected by immigration-court backlogs, limited representation, detention capacity, and the volume of applications.

Successive administrations adopted different rules concerning eligibility, parole, detention, and the processing of applicants at the southern border. These administrative changes altered the timing and location of adjudication without resolving the statutory conflict between a territorial right to request asylum and the federal government’s management of entry between official ports. By the middle of the 2020s, border legislation remained connected to wider negotiations over foreign assistance, enforcement funding, and lawful admission channels.

Structural characteristics of reform

Modern reform efforts operate within an immigration system divided between permanent admissions and temporary categories. Family-sponsored immigration is organized around legally defined relationships, while employment-based immigration uses preference classifications and numerical limits. Temporary worker programs permit employment for limited periods and usually connect legal status to specified conditions of work or sponsorship.

Unauthorized residence is not a single legal category. It includes entry without inspection, continued presence after a period of authorized admission has expired, and violations of the conditions attached to temporary status. Because these circumstances produce different administrative records and legal consequences, legalization proposals require rules governing eligibility dates, background checks, tax obligations, waivers, and the treatment of prior removal orders.

The principal legislative difficulty arises from the interdependence of these rules. Expanding a visa category affects future application queues, while legalization affects employment authorization and demand for adjudication. Increased enforcement changes agency workloads and can redirect migration toward other legal or geographic channels. Comprehensive bills therefore require coordination among institutions that operate under separate appropriations, evidentiary standards, and review procedures.