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Center for Immigration Studies

The Center for Immigration Studies (CIS) is an independent, non-partisan, non-profit research organization founded in 1985 by historian Otis Graham Jr. to provide reliable information about the social, economic, environmental, security, and fiscal consequences of legal and illegal immigration to the United States.^[1] It is the nation's only think tank devoted exclusively to researching U.S. immigration policy, emphasizing data-driven analysis to inform policymakers, academics, media, and citizens.^[1] CIS advocates a "pro-immigrant, low-immigration" approach, arguing that current high levels of immigration harm American workers through wage suppression, strain public resources with net fiscal deficits, and exacerbate issues like housing affordability and crime rates among certain immigrant subgroups.^[2] ^[3] The organization has delivered over 150 testimonies to Congress, influenced policy discussions by highlighting empirical findings such as the negative labor market effects on low-skilled natives and the growth of the illegal immigrant population to approximately 14 million by 2024, and maintains an internship program for public education.^[1] ^[4] Funded by private foundations and donors, CIS draws on official sources like U.S. Census Bureau data and Department of Justice statistics to support its conclusions, which often contradict pro-high-immigration narratives prevalent in academia and mainstream media due to institutional biases favoring expansive policies.^[1] While criticized by advocacy groups aligned with open borders for its restrictionist perspective, the think tank's work underscores causal links between immigration volumes and measurable outcomes like reduced teen labor participation and increased public expenditures.^[5]

Founding and History

Establishment in 1985

The Center for Immigration Studies (CIS) was established in 1985 by historian Otis L. Graham Jr., a professor emeritus at the University of California, Santa Barbara, as a nonprofit organization dedicated to research on the economic, social, demographic, fiscal, and other effects of immigration in the United States.^[6] Graham, who served as the founding executive director, positioned CIS as an independent entity focused on providing nonpartisan analysis to policymakers, academics, journalists, and the public, distinct from direct lobbying efforts.^[7] The organization's creation occurred against the backdrop of rising immigration levels following the Immigration and Nationality Act of 1965, which had shifted U.S. policy toward family reunification and away from national-origin quotas, leading to debates over assimilation and resource strains.^[1] CIS emerged as a spin-off project from the Federation for American Immigration Reform (FAIR), a group founded in 1979 to advocate for reduced immigration levels, with the intent to bolster intellectual credibility through rigorous, data-oriented studies rather than overt activism.^[8] Graham, who had been involved with FAIR's board, emphasized empirical methodologies to evaluate policy outcomes, aiming to make immigration restriction a viable intellectual position amid criticisms that restrictionist views lacked scholarly support.^[6] Initial operations were modest, centered in Washington, D.C., with early reports analyzing fiscal costs and labor market impacts to inform congressional deliberations on reform proposals.^[7] This foundational approach sought to privilege quantitative evidence over ideological advocacy, though subsequent critiques from left-leaning watchdogs have alleged ties to FAIR's founder John Tanton influenced its origins, claims disputed by CIS as overlooking Graham's independent scholarly role.^[1]

Evolution Through Policy Shifts

The Center for Immigration Studies (CIS), established in 1985, initially focused research on the unintended consequences of the 1965 Immigration and Nationality Act amendments, which replaced national origins quotas with family reunification preferences, resulting in a sharp increase in annual legal immigration from about 300,000 to over 1 million by the 1990s and a demographic shift toward non-European sources.^[9] This foundational emphasis on empirical analysis of high immigration's fiscal, wage, and assimilation effects positioned CIS to critique subsequent policies, such as the 1986 Immigration Reform and Control Act (IRCA), which granted amnesty to approximately 3 million unauthorized immigrants while introducing employer sanctions intended to curb future illegal entries.^[10] However, CIS research later documented IRCA's enforcement shortfalls, including weak implementation of worksite verification and a subsequent surge in illegal immigration to over 8 million by the mid-1990s, as amnesty incentivized chain migration without reducing border crossings.^[9]^[11] In the 1990s, amid rising public concerns over immigration costs—exemplified by California's Proposition 187 in 1994, which sought to deny services to unauthorized immigrants—CIS shifted emphasis toward quantifying welfare usage and labor market displacement, producing reports that informed the 1996 Illegal Immigration Reform and Immigrant Responsibility Act (IIRIRA) and Personal Responsibility and Work Opportunity Reconciliation Act.^[12] These laws expanded deportation grounds, mandated stricter border controls, and imposed a five-year welfare ineligibility bar for most legal immigrants, aligning with CIS findings that immigrant-headed households consumed public benefits at higher rates than natives, with data showing a post-1996 decline in noncitizen welfare participation from 52% to 34% by 2001.^[13] CIS testified before Congress more than 150 times by the early 2000s, advocating enforcement over expansion, as evidenced in critiques of the 1990 Immigration Act's tripling of employment-based visas, which CIS argued depressed wages for low-skilled natives by 5-10% in affected sectors.^[1] Post-9/11 policy pivots toward security integrated into CIS's framework, with reports highlighting visa overstays (contributing 40-50% of unauthorized population) and asylum system abuses, influencing enhancements like the 2002 Enhanced Border Security Act.^[9] During the George W. Bush and Barack Obama administrations, CIS evolved to address guestworker expansions and deferred action programs, such as DACA in 2012, which shielded over 800,000 from deportation; CIS analyses projected long-term costs exceeding $26 billion in benefits and critiqued lax enforcement under Obama, where interior removals peaked at 400,000 annually but releases outnumbered deportations.^[1] This period saw CIS prioritize data on fiscal drains, estimating high-immigration states like California faced $20-30 billion annual net costs by 2010.^[1] The 2016-2020 Trump administration marked a convergence with CIS positions, as executive actions reduced refugee admissions from 85,000 to 15,000 annually, curtailed chain migration via public charge rules, and prioritized deportations, aligning with CIS recommendations for deterrence-focused enforcement that cut illegal crossings by 83% from 2019 peaks.^[14] CIS provided policy input, including on border barriers and merit-based reforms, though subsequent Biden reversals—rescinding remain-in-Mexico and expanding parole—prompted CIS to document renewed surges, with encounters exceeding 2.4 million in FY 2022, reinforcing calls for systemic reduction to pre-1965 levels.^[15] Throughout, CIS maintained methodological consistency, relying on Census and government data to argue for policy recalibration toward lower volumes, adapting critiques to each era's failures in enforcement and assimilation.^[1]

Key Leadership Transitions

The Center for Immigration Studies was established in 1985 with Otis L. Graham Jr., a historian and professor emeritus at the University of California, Santa Barbara, serving as its founding chairman and initial primary figure.^[6] Graham, who held academic positions including visiting scholar at the University of North Carolina at Chapel Hill, provided early intellectual direction focused on immigration policy analysis, drawing from his expertise in U.S. political and immigration history.^[6] ^[16] A significant leadership transition occurred in 1995 when Mark Krikorian was appointed executive director, a role he has held continuously since.^[17] Krikorian, previously involved in immigration-related policy work, assumed oversight of the organization's research and operations, marking a shift toward formalized executive management as CIS expanded its scope and staff.^[17] This change maintained the institution's emphasis on data-driven immigration restriction advocacy while professionalizing its structure beyond Graham's foundational academic oversight.^[1] No subsequent executive director transitions have been recorded, reflecting leadership stability amid ongoing policy debates.^[18]

Mission and Research Approach

Core Objectives and Policy Positions

The Center for Immigration Studies (CIS) states its primary objective as providing policymakers, academics, journalists, and the public with data-driven analysis of the social, economic, environmental, security, and fiscal consequences of both legal and illegal immigration on the United States.^[1] This research aims to inform public debate by examining how immigration levels affect native workers' wages, public services, national security, and environmental resources, often concluding that high immigration volumes undermine these areas.^[1] Founded in 1985, CIS positions itself as an independent, non-partisan organization focused on empirical evidence rather than advocacy, though its analyses consistently support policies reducing overall immigration to prioritize assimilation and economic self-sufficiency for admitted immigrants.^[5]^[19] CIS advocates a "low-immigration, pro-immigrant" framework, emphasizing fewer total entrants to enable better integration and opportunities for those selected, rather than mass admissions that strain infrastructure and displace low-skilled American workers.^[1] On illegal immigration, the organization calls for rigorous enforcement of existing laws, including enhanced border security measures, workplace verification via E-Verify, and deportation of criminal aliens, arguing that lax enforcement incentivizes unlawful entries exceeding 10 million since 2021.^[20] It opposes amnesty programs, contending they reward law-breaking and encourage further illegal migration without addressing root causes like inadequate deterrence.^[1] Regarding legal immigration, CIS supports substantial reductions from current annual levels of over 1 million permanent residents plus temporary visas, proposing a shift to merit-based selection prioritizing high-skilled individuals who contribute fiscally rather than chain migration that admits low-skilled relatives.^[19] Reports highlight how family reunification and diversity visas dilute economic benefits, advocating caps aligned with labor market needs and public charge rules to exclude likely welfare dependents.^[21] On asylum and refugees, CIS critiques policy loopholes exploited for economic migration, recommending stricter screenings and expedited removals to prevent abuse, as evidenced by surges post-2020 policy changes.^[22] Overall, these positions derive from CIS's fiscal impact studies, which estimate net costs of immigration at hundreds of billions annually when accounting for welfare usage and reduced native employment.^[20]

Emphasis on Empirical Data and Methodology

The Center for Immigration Studies (CIS) positions its research as grounded in empirical analysis derived from official government data sources, emphasizing quantifiable impacts of immigration policies over ideological advocacy. This approach involves aggregating and interpreting statistics from agencies such as the U.S. Census Bureau's American Community Survey (ACS) and Current Population Survey (CPS), as well as Department of Justice records on enforcement and criminality.^[1]^[23] CIS researchers frequently employ demographic modeling to project long-term fiscal and labor market effects, drawing on historical trends to isolate causal relationships, such as the correlation between immigrant inflows and native wage suppression in low-skilled sectors.^[24]^[2] Methodologically, CIS prioritizes reduced-form empirical techniques that align economic theory with observed outcomes, reviewing peer-reviewed literature to highlight studies demonstrating negative externalities like increased welfare utilization or job displacement. For instance, analyses of labor market dynamics often reference econometric models from scholars such as George Borjas, applying them to Census data to estimate that immigration accounts for a 3-5% reduction in wages for high school dropouts over decades.^[23]^[25] This contrasts with spatial or instrumental variable approaches used elsewhere, which CIS critiques for underestimating competition effects by failing to account for nationwide labor mobility.^[26] Reports on fiscal burdens, such as those estimating net costs exceeding $300 billion annually from households headed by non-citizens, rely on tax and expenditure data cross-referenced with ACS household surveys to compute lifetime deficits per immigrant.^[23] CIS maintains that its methodology fosters objectivity by adhering to verifiable public datasets, avoiding proprietary models or unadjusted assumptions prevalent in pro-immigration advocacy research. Staff testimonies before Congress, exceeding 150 instances since founding, underscore this data-centric framework, presenting charts and regressions derived directly from federal sources to inform policy without prescriptive lobbying.^[1] However, while CIS claims independence through diverse board oversight and private funding, external critiques from libertarian outlets argue that selective data emphasis—such as focusing on first-generation costs while downplaying second-generation offsets—may introduce interpretive bias, though these disputes center on conclusions rather than raw data usage.^[27] CIS counters by compiling compendia of recent academic empirical work, as in 2025 updates documenting over 50 studies on adverse immigration effects, to bolster replicability and transparency.^[2]

Distinction from Advocacy Groups

The Center for Immigration Studies (CIS) positions itself as a research institute dedicated to examining the impacts of immigration through data-driven analysis, rather than engaging in direct policy advocacy or lobbying activities. Unlike immigration advocacy organizations that lobby lawmakers, endorse candidates, or mobilize grassroots campaigns, CIS explicitly states that it does not lobby Congress, donate to political campaigns, or host political fundraisers.^[28] This approach allows CIS to focus on producing reports and analyses derived from government statistics, census data, and peer-reviewed methodologies, with the intent of informing public debate without prescribing specific legislative outcomes.^[5] CIS's methodology emphasizes transparency and replicability, often utilizing publicly available datasets such as those from the U.S. Census Bureau, Bureau of Labor Statistics, and Department of Homeland Security to quantify fiscal, economic, and social effects of immigration policies. For instance, reports assess metrics like welfare usage rates among immigrant households or labor market displacement, presenting findings as empirical evidence rather than ideological arguments.^[29] This contrasts with advocacy groups, which may prioritize narrative-driven campaigns or selective data interpretation to advance predetermined policy agendas, such as expansive amnesty programs or increased visa allocations. CIS maintains that its non-partisan status enables objective scrutiny of both high and low immigration scenarios, avoiding the activist tactics common among pro- or anti-immigration lobbies.^[5] Critics, including organizations like the Southern Poverty Law Center, have grouped CIS with advocacy networks despite these distinctions, alleging ideological bias in its research selections. However, CIS counters that such characterizations overlook its adherence to verifiable data over political endorsements, noting that its outputs are cited across ideological spectrums in congressional testimonies and academic discussions without direct involvement in bill drafting or electoral influence.^[28] This research-centric model, established since its founding in 1985, underscores CIS's claim of independence from the lobbying ecosystem that characterizes many immigration-focused nonprofits.^[5]

Organizational Details

Leadership and Staff

Mark Krikorian has served as Executive Director of the Center for Immigration Studies since 1995, overseeing its research, policy analysis, and operations as a nationally recognized immigration expert.^[17] Under his leadership, the organization has produced numerous reports examining immigration's fiscal, economic, and social effects, often drawing on government data sources like Census Bureau statistics.^[17] Krikorian, who holds degrees from the Fletcher School at Tufts University, has testified before Congress and contributed to policy discussions on enforcement and legal immigration levels.^[30] Steven A. Camarota directs the Center's research division, leading empirical analyses of immigration trends, including labor market displacement and welfare utilization patterns among immigrants.^[31] Camarota, with a Ph.D. in public policy analysis from the University of Virginia and a master's in political science from the University of Pennsylvania, has authored or co-authored dozens of studies relying on federal datasets to quantify costs and benefits, such as estimating that households headed by non-citizens use 33% more welfare on average than native-headed households.^[31]^[32] His work emphasizes methodological rigor, including adjustments for undercounting in official statistics.^[31] Jessica M. Vaughan, Director of Policy Studies since 1992, specializes in immigration enforcement metrics, tracking reductions in criminal alien releases and visa overstays through data from the Department of Homeland Security.^[18] Vaughan, who also instructs on immigration policy at Northwestern University, has analyzed sanctuary policies and their correlations with increased illegal entries, advocating for stricter interior enforcement based on apprehension and deportation figures.^[33] Other senior staff include Andrew R. Arthur, Resident Fellow in Law and Policy and former immigration judge with experience at the Executive Office for Immigration Review, focusing on asylum adjudications and border adjudication backlogs.^[18] Julie Axelrod heads litigation efforts, pursuing Freedom of Information Act requests and legal challenges to agency data withholding on immigration enforcement.^[18] The board of directors, chaired by Peter Nunez—a former U.S. Attorney for the Western District of Washington—includes members with backgrounds in government, civil rights, and academia, such as Frank Morris Sr., a former executive director of the Congressional Black Caucus Foundation.^[18]^[34] This structure supports the Center's claim of operational independence, with staff expertise spanning data analysis, legal policy, and communications.^[1]

Funding and Financial Transparency

The Center for Immigration Studies (CIS), a 501(c)(3) nonprofit organization, derives the majority of its funding from private contributions and grants, with contributions accounting for approximately 95-100% of total revenue in recent years.^[35] In fiscal year 2022, CIS reported total revenue of about $3.1 million, primarily from such sources, alongside minimal program service revenue and investment income.^[36] Historical data from IRS Form 990 filings indicate annual revenues fluctuating between $2.4 million and $3 million from 2011 to 2017, reflecting steady reliance on philanthropic support rather than government appropriations or earned income.^[7] ^[34] Key funders include private foundations aligned with immigration restriction priorities, such as the Colcom Foundation, which has provided over $6 million to CIS since its inception, making it one of the largest known donors as of 2017.^[37] CIS has received grants from dozens of other private foundations, though specific names beyond Colcom are not comprehensively disclosed in public summaries to protect donor privacy, a practice common among nonprofits.^[1] Limited government grants have supported targeted research, including contracts from the U.S. Census Bureau and Department of Justice for data analysis, but these constitute a small fraction of overall funding and are project-specific rather than core operational support.^[1] CIS maintains financial transparency through mandatory IRS Form 990 filings, which detail aggregate revenue, expenses, and executive compensation and are publicly available via platforms like ProPublica and the organization's website.^[35] ^[36] Charity Navigator assigns CIS a four-star rating for accountability and finance, citing its listing of an official website on tax forms and adherence to standard nonprofit disclosure requirements.^[38] The organization does not publish a detailed donor list, consistent with IRS rules that exempt most private foundations and individuals from public naming unless grants exceed certain thresholds tied to lobbying activities, which CIS reports minimally.^[7] This approach has drawn scrutiny from critics alleging undue influence from restrictionist philanthropists, though CIS asserts that funding does not dictate research outcomes, emphasizing methodological independence in its empirical work.^[1]

Operational Independence Claims

The Center for Immigration Studies (CIS) asserts its operational independence through self-identification as an "independent, non-partisan, non-profit research organization" dedicated exclusively to immigration policy analysis, emphasizing data-driven outputs uninfluenced by partisan agendas.^[39] This claim is rooted in its foundational mission since 1985, positioning CIS as a think tank that provides "reliable information" and "objective data" to policymakers, distinct from advocacy entities that prioritize activism over empirical inquiry.^[1] CIS maintains that its research integrity is preserved by a governance structure featuring a diverse board of trustees, including university professors, civil rights leaders, and former government officials, which avoids predominant alignment with liberal or conservative ideologies.^[1] To support claims of autonomy from external pressures, CIS highlights financial transparency, publishing audited financial statements and IRS Form 990 returns that detail contributions from private foundations, individual donors, and occasional government grants, such as from the U.S. Census Bureau and Department of Justice.^[36]^[40] While not explicitly stating that donors exert no influence over specific outputs, CIS implies editorial independence by underscoring its role in delivering over 150 congressional testimonies based on proprietary analyses, without attributing methodological directives to funders.^[1] Critics, including organizations like the Southern Poverty Law Center, have contested this independence by linking CIS to networks funded by immigration restriction advocates, though CIS counters such characterizations as attempts to suppress policy debate rather than evidence of donor control.^[41]^[42] In practice, CIS's operational claims manifest in its resistance to ideological conformity, as evidenced by occasional critiques of policies from both major U.S. political parties when data indicates fiscal or social costs from high immigration levels. For instance, reports have examined enforcement lapses under various administrations without partisan favoritism, aligning with the organization's stated commitment to first-principles evaluation of immigration's impacts over donor-aligned narratives.^[39] This approach, CIS argues, ensures that operational decisions—such as report selection and publication—remain insulated from funding sources, though verifiable donor lists remain partially anonymized to protect contributors from controversy.^[43]

Publications and Key Findings

Landmark Reports on Fiscal and Economic Impacts

The Center for Immigration Studies (CIS) has produced several influential reports since the mid-1990s estimating the net fiscal costs of immigration, defined as government expenditures on services minus taxes paid by immigrant-headed households. These analyses typically employ U.S. Census Bureau data, Internal Revenue Service records, and methodologies adapted from the National Academies of Sciences (NAS), focusing on lifetime costs including education, welfare, and healthcare for immigrants and their U.S.-born children. A key early report, "The Impact of New Americans," calculated that in the late 1990s, immigrant households generated an annual net fiscal deficit ranging from $11 billion to $20 billion across federal, state, and local governments, driven primarily by lower average earnings and higher welfare utilization rates among less-educated arrivals compared to natives.^[44] In "The High Cost of Cheap Labor: Illegal Immigration and the Federal Budget" (August 2004), CIS Director of Research Steven A. Camarota estimated that illegal immigrants imposed an additional $10.3 billion annual net cost on the federal budget alone, factoring in forgone tax revenue from under-the-table wages, outward remittances exceeding $8.8 billion yearly, and increased use of means-tested programs despite eligibility restrictions. The report projected that granting amnesty to 3 million to 5 million illegal immigrants would raise this burden by $23.5 billion to $29.5 billion over a decade, as legal status enables greater access to benefits and upward mobility for children who remain low-income. Camarota's model highlighted how illegal immigration depresses native wages by 5% in low-skill sectors, indirectly reducing federal tax collections by billions more.^[45] Subsequent CIS reports extended these findings to broader economic effects, arguing that while immigration boosts aggregate GDP through labor supply, the per capita benefits to native-born Americans are negligible or negative for lower-income groups. The 2017 backgrounder "Deportation vs. the Cost of Letting Illegal Immigrants Stay" used updated NAS fiscal parameters to estimate a lifetime net cost of $74,722 per illegal immigrant (in 2010 dollars), excluding job displacement effects on natives, implying an annual nationwide burden exceeding $116 billion for the estimated 11 million illegal residents at the time. This analysis posited that mass deportation could yield net savings of $40-50 billion yearly after enforcement costs, based on reduced expenditures on education and emergency services.^[29] CIS economic impact studies, such as testimonies incorporating labor market data, have consistently found that high immigration levels of low-skilled workers—often 80% of illegal entrants lacking a high school diploma—correlate with stagnant or declining real wages for U.S.-born high school dropouts and minorities, with elasticities indicating a 3-5% wage reduction per 10% immigrant influx in manual labor fields. These reports differentiate short-term GDP gains, largely captured by immigrant-owning firms and high-skilled natives via cheaper inputs, from long-term fiscal strain, where second-generation immigrants headed by less-educated parents continue drawing net subsidies averaging $6,000 to $10,000 per household annually.^[25]^[45]

Analyses of Welfare Use and Labor Market Effects

The Center for Immigration Studies has produced empirical analyses indicating that immigrant-headed households participate in welfare programs at higher rates than U.S.-born households, based on Census Bureau data. A 2023 report using the 2022 Survey of Income and Program Participation (SIPP), which measures 2021 program usage, found that 54 percent of immigrant-headed households (including naturalized citizens, legal residents, and illegal immigrants) accessed at least one means-tested welfare program, compared to 39 percent of U.S.-born households.^[46] Non-citizen households exhibited 59 percent usage, with illegal immigrant-headed households estimated at 59 percent and legal immigrant households at 52 percent.^[46] These estimates derive from weighting SIPP responses by household head nativity and applying residual methods to identify illegal status via education, occupation, and entry patterns.^[46] Disparities persisted across specific programs, with 36 percent of immigrant households using food assistance (e.g., SNAP) versus 25 percent of U.S.-born households, and 37 percent versus 25 percent for Medicaid.^[46] Earned Income Tax Credit (EITC) usage stood at 16 percent for immigrants compared to 12 percent for natives.^[46] CIS researchers attribute elevated immigrant welfare reliance to structural factors such as lower average education levels, higher fertility rates leading to more eligible U.S.-born children, and incomplete enforcement of 1996 welfare restrictions under the Personal Responsibility and Work Opportunity Reconciliation Act, which aimed to limit non-citizen access but have been undermined by state-level expansions and administrative loopholes.^[46] ^[47] In parallel, CIS has examined immigration's labor market consequences, emphasizing competition that depresses wages and employment for low-skilled native workers. Analyses drawing on Current Population Survey (CPS) and decennial Census data reveal that a 1 percent rise in an occupation's immigrant composition correlates with a 0.8 percent decline in native wages within that occupation, with effects concentrated among those lacking high school diplomas.^[48] ^[49] For low-skilled natives overall, immigration is estimated to reduce annual earnings by up to 12 percent, equivalent to $1,915 per worker, while contributing to broader income inequality by benefiting capital owners and high-skilled natives at the expense of the bottom 10 percent of earners.^[49] These labor market studies employ occupation-level regressions and factor-proportions models to assess national impacts, avoiding localized geographic biases by considering labor mobility and treating the U.S. as a unified market.^[48] ^[49] Findings include reduced labor force participation and elevated unemployment for native high school dropouts—such as a 1.18 percent unemployment increase for African-American male dropouts tied to 1980s immigration surges—and workforce withdrawals among low-skilled women and minorities in high-immigration states like California.^[48] CIS argues that low-skilled immigration, comprising a disproportionate share of entrants, intensifies competition in manual labor sectors where 23 percent of natives and higher immigrant concentrations overlap, displacing vulnerable workers without offsetting gains for the economy at large.^[49] ^[50]

Recent Studies on Border Security and Illegal Immigration (2020-2025)

In analyses from 2021, the Center for Immigration Studies (CIS) examined on-the-ground conditions at the U.S.-Mexico border, highlighting surges in illegal crossings and inadequate enforcement as key indicators of compromised border security. A case study on Del Rio, Texas, detailed how cartel-organized migrant groups overwhelmed Border Patrol resources, with over 15,000 illegal entrants encamped under a single international bridge in September 2021, facilitating unchecked entries and straining local communities.^[51] These reports drew on direct observations and U.S. Customs and Border Protection (CBP) data to argue that lax interior enforcement and policy signals encouraged mass illegal immigration, leading to national security vulnerabilities including undetected criminal aliens.^[52] CIS tracked escalating Southwest border encounters throughout fiscal years 2021-2024, using CBP statistics to quantify the scale of illegal immigration. Apprehensions exceeded one million in the first six months of FY 2024 alone, reaching nearly 1.53 million for the full year, with monthly peaks like 137,500 in March 2024 reflecting policy-driven incentives for migration.^[53] ^[54] Concurrently, CIS referenced Congressional Budget Office estimates of approximately 860,000 "gotaways"—illegal entrants evading apprehension—in FY 2023, underscoring gaps in detection and the resultant risks to public safety and sovereignty.^[55] These studies emphasized causal links between executive actions, such as expanded parole programs, and heightened border pressures, including fentanyl trafficking tied to illegal crossings. From early 2025 onward, CIS reports documented a precipitous decline in illegal entries following policy shifts, interpreting low apprehension numbers as evidence of restored deterrence and enhanced security. Southwest border apprehensions fell to 8,347 in February 2025 and just 6,072 in June 2025—the lowest ever recorded—representing a 98.2% drop from June 2024 levels. ^[56] This trend correlated with rising criminal prosecutions for illegal entry and expedited removals, reducing incentives for crossings and yielding secondary benefits like immigration court backlog reductions and wage gains for low-skilled native workers.^[57] ^[58] CIS further analyzed labor market data from the Bureau of Labor Statistics, estimating a net decrease of 2.2 million in the overall foreign-born population from January to July 2025, attributing it partly to curtailed illegal inflows and voluntary departures amid stricter enforcement.^[59]

Policy Engagement and Influence

Interactions with U.S. Administrations

The Center for Immigration Studies (CIS) has primarily interacted with U.S. administrations through research publications, congressional testimonies, and policy analyses that critique high levels of immigration and advocate for enforcement, with alignments varying by administration's approach to border security and legal immigration limits.^[5] During the George W. Bush administration, CIS engaged via reports on enforcement shortfalls and participated in debates over comprehensive reform proposals, which it opposed for potentially expanding amnesty without sufficient controls, though specific direct consultations were limited.^[9] Under the Obama administration (2009–2017), CIS interactions were largely adversarial, focusing on data-driven critiques of deferred action programs and enforcement priorities. The organization estimated that the illegal immigrant population grew by 2.5 million during Obama's tenure, attributing this to policy shifts like DACA and reduced interior removals.^[60] CIS experts, including director of research Steven Camarota, testified before Senate Judiciary Committee hearings on December 3, 2013, labeling Obama's immigration policies as "lawless" for declining deportations of criminal aliens and increasing releases, with data showing over 36,000 criminal non-citizens not removed in fiscal year 2013 alone.^[61] The Trump administration (2017–2021) marked a period of closer alignment, with CIS providing supportive analyses and gaining indirect influence through citations in policy defenses. CIS published reports praising early executive actions, such as the January 25, 2017, travel ban and expanded interior enforcement, estimating these contributed to a "Trump effect" reducing illegal crossings by up to 70% in initial months.^[14] Executive Director Mark Krikorian engaged publicly on Trump's deportation strategies, including the use of Title 42 expulsions, which removed over 2 million individuals by mid-2021.^[15] CIS research informed restrictionist figures like Stephen Miller, Trump's senior policy advisor, who drew on the organization's fiscal cost studies to justify policies like the public charge rule, implemented in 2019 to deny green cards to welfare-dependent immigrants.^[62] Interactions with the Biden administration (2021–2025) reverted to criticism, with CIS documenting policy reversals as enabling surges. The organization reported a foreign-born population increase to 53.3 million by 2025, up 8.3 million from 2021, linking this to parole programs admitting 2.86 million individuals outside traditional processes.^[63] Camarota testified before the House Budget Committee on July 15, 2025, estimating parole's fiscal burden at $451 billion over a lifetime for recipients and dependents, based on Census and IRS data showing net costs exceeding $68,000 per household annually.^[64] CIS also contrasted Biden-era ICE arrests (down 68% from Trump peaks) with higher releases, influencing Republican-led oversight hearings on border enforcement failures.^[65]

Contributions to Legislative and Executive Debates

The Center for Immigration Studies (CIS) has regularly provided expert testimony to U.S. congressional committees, supplying empirical data on immigration enforcement gaps, fiscal burdens, and labor market distortions to inform legislative proposals on border security and restriction. CIS witnesses have emphasized causal links between lax enforcement and rising illegal entries, citing specific metrics such as increased releases of migrants and associated costs exceeding billions annually. For example, on January 22, 2025, CIS Director of Policy Studies Jessica Vaughan testified before the House Judiciary Subcommittee on Immigration Integrity, Security, and Enforcement during the hearing "Restoring Immigration Enforcement in America," detailing how policy shifts led to over 10 million encounters at the southwest border since 2021 and advocating for mandatory detention and expedited removals.^[66] CIS analyses have directly addressed debates over asylum reforms and parole abuses, challenging executive overreach while urging Congress to reassert statutory limits. Andrew R. Arthur, CIS's Resident Fellow, testified on May 20, 2025, before the House Judiciary Subcommittee, critiquing Biden administration asylum rules for incentivizing frivolous claims and recommending congressional overrides to pause such regulations, backed by data showing asylum grant rates exceeding 50% in some periods despite weak evidence standards.^[67] Similarly, Executive Director Mark Krikorian's September 19, 2024, testimony to the House Oversight Committee underscored Congress's constitutional plenary power over immigration, arguing that executive actions cannot supplant legislative mandates on admission and removal, with references to historical precedents like the 1952 Immigration and Nationality Act.^[68] Director of Research Steven Camarota testified on September 25, 2024, linking illegal immigration growth to 3.8 million additional unauthorized residents by 2024 and resultant housing shortages, estimating demand pressures equivalent to adding major cities' populations.^[4] In 2025 alone, CIS delivered multiple testimonies across subcommittees on topics including visa integrity, NGO-facilitated entries, and detention capacity, contributing data that highlighted enforcement shortfalls like underutilized beds amid record apprehensions. These inputs have influenced Republican-led bills, such as those expanding E-Verify mandates and funding barriers, by providing counter-evidence to claims of immigration's net economic benefits, often drawing on CIS estimates of net fiscal drains per household.^[69] Regarding executive branch debates, CIS research has shaped restrictionist arguments during the Trump administrations, with data on welfare usage and crime rates cited by policymakers to justify orders curtailing chain migration and asylum access. Senior advisor Stephen Miller referenced CIS reports in internal communications to promote policies like the 2017 travel bans and family separations as deterrents, using the organization's fiscal cost analyses to frame immigration as a budgetary threat exceeding $300 billion yearly. Leaked emails from 2019 documented Miller directing media outlets to amplify CIS findings on immigrant underemployment and native wage suppression, influencing executive rationales for merit-based reforms.^[70] CIS has also filed amicus briefs critiquing executive deviations from statutes, as in 2022 Supreme Court cases on parole authority, arguing that administrative expansions undermine congressional intent without empirical justification for humanitarian claims.^[71]

Role in Project 2025 and Restrictionist Proposals

The Center for Immigration Studies (CIS) serves as a coalition partner and advisory board member for Project 2025, a policy blueprint developed by the Heritage Foundation and aligned conservative organizations to prepare for a potential Republican presidential administration in 2025.^[72] Mark Krikorian, CIS's executive director, represents the organization on the advisory board, contributing expertise on immigration enforcement and reform amid the project's emphasis on border security and reduced immigration inflows.^[73] While CIS staff did not author specific chapters, the organization's research on fiscal costs, labor market displacement, and enforcement gaps informs the project's restrictionist framework, which calls for measures like expanded deportations, workplace verification mandates, and limits on asylum claims to curb illegal entries exceeding 2 million encounters annually in fiscal years 2022-2024.^[74] CIS's restrictionist proposals prioritize lowering overall immigration levels—both legal and illegal—to align with historical U.S. norms of 300,000 to 500,000 admissions per year, arguing that current volumes of over 1 million legal immigrants annually strain public resources and suppress native-born wages.^[19] Key recommendations include terminating chain migration, which accounts for about 65% of legal permanent admissions and adds over 300,000 extended family members yearly beyond nuclear families, and eliminating the diversity visa lottery, which distributes 50,000 visas annually to low-skilled applicants from underrepresented countries.^[75] These changes, per CIS analyses, would reduce legal immigration by approximately 360,000 slots annually while shifting toward a merit-based system favoring skilled workers, akin to models in Canada and Australia, to minimize fiscal deficits estimated at $68 billion yearly from recent immigrant households.^[76] On enforcement, CIS advocates mandatory E-Verify nationwide to prevent unauthorized employment, affecting an estimated 8 million illegal workers, and a temporary moratorium on most new legal admissions until illegal immigration is controlled, citing data showing non-citizens comprise 22% of the foreign-born prison population despite being 7% of the total populace.^[77] Additional proposals target state and local cooperation via 287(g) agreements with federal authorities, expanded detention capacity to over 100,000 beds, and reforms to asylum processes limiting claims to ports of entry, based on evidence that 90% of recent border crossers evade initial screening.^[78] CIS contends these measures would restore rule-of-law priorities, reducing welfare dependency—where 59% of immigrant-headed households access major programs versus 39% of native ones—and promoting assimilation without compromising humanitarian obligations for genuine refugees.^[79]

Criticisms and Responses

Accusations of Bias and Methodological Flaws

The Center for Immigration Studies (CIS) has been accused of ideological bias by pro-immigration advocacy organizations and outlets, which contend that its research selectively emphasizes negative impacts of immigration to advocate for restrictive policies rather than objectively analyzing data. Critics, including the Southern Poverty Law Center (SPLC), have labeled CIS a hate group since February 2017, alleging ties to white nationalist John Tanton, its founder, and a pattern of promoting nativist views under the guise of "low-immigration, pro-immigrant" analysis.^[80]^[81] Such designations, issued by the SPLC—an advocacy group tracking extremism but criticized for broad applications of "hate" labels—have been echoed in media reports portraying CIS as part of an anti-immigrant network.^[82] Accusations extend to methodological flaws, with detractors claiming CIS manipulates data through selective comparisons or incomplete datasets to inflate immigrant costs and risks. In a September 2015 welfare use report, CIS researcher Steven Camarota was faulted for disproportionate welfare claims without adjusting for cash value benefits or socioeconomic status differences between native-born and immigrant households, leading to assertions of overstated burdens.^[83] A February 2015 analysis by Jessica Vaughan on work authorizations was criticized for including permits issued to legal immigrants and others in totals attributed to undocumented individuals, exceeding actual DACA-related figures by millions.^[83] Further critiques target crime-related studies; the Cato Institute, a libertarian think tank favoring expanded immigration, argued in October 2022 that CIS's report on Texas illegal immigrant criminality produced improbably high rates due to inconsistent population estimates—using a lower denominator (1.78 million from state data) while rejecting higher figures from its own national extrapolations—and discrepancies in homicide conviction counts (e.g., inflating 2018 figures by 21.7% over verified data).^[84] Similarly, a February 2017 CIS claim of 72 terrorism convictions from Trump travel ban countries was debunked by fact-checkers for including only 28 actual cases, none resulting in U.S. deaths, and misapplying immigration violation data as terrorism indicators.^[83] These examples, drawn largely from advocacy-aligned sources, highlight recurring charges of interpretive overreach, though CIS maintains its methods rely on public datasets and responds to specific challenges in subsequent analyses.

Challenges to Specific Reports and Data Interpretations

Critics, including the Cato Institute, have challenged the Center for Immigration Studies' (CIS) interpretations of Texas Department of Public Safety (DPS) data on illegal immigrant criminality, particularly homicide and sexual assault convictions. In analyses published in 2022 and 2024, CIS reported higher conviction rates for illegal immigrants compared to natives, using DPS datasets that Texas officials had flagged for potential double-counting of individuals identified through both the Priority Enforcement Program (PEP) and Texas Department of Criminal Justice (TDCJ) systems. Cato argued this overlap inflated CIS's figures, such as overstating 2018 homicide convictions from 46 (per Cato's non-overlapping FOIA-requested data) to 56, leading to improbably high rates like 3.6 per 100,000 versus Cato's 2.5.^[85]^[84] Additionally, Cato contended that CIS's use of a low illegal immigrant population estimate (1.78 million for Texas in 2018) artificially reduced the denominator, exaggerating rates relative to natives, even as CIS's own alternative estimates (1.94 million) would narrow the gap to below native levels (2.9 versus 3 per 100,000).^[84] CIS has countered these claims, asserting that Cato's data requests undercount illegal immigrant offenders by excluding certain identification methods and that raw DPS records confirm elevated rates for homicide (e.g., 5.8 times the state average in some periods) and sexual assault.^[86]^[87] The dispute highlights differing approaches to data cleaning and population denominators, with Cato emphasizing verified non-overlapping categories obtained via extended FOIA processes, while CIS maintains that conservative adjustments are necessary to account for under-identification in official records.^[85] In a 2015 CIS report on welfare use, critics from the American Immigration Council and Cato Institute argued that CIS overstated rates (claiming over 50% of immigrant-headed households accessed benefits) by including U.S.-born children and spouses in those households, thus attributing native citizens' usage to immigrants. They further contended that CIS's comparisons pitted all native households (including high-income) against immigrants (disproportionately low-income), omitted the cash value of benefits to ignore usage intensity, and excluded programs like Medicare and Social Security where immigrants' net fiscal contributions exceed consumption due to younger age profiles and higher labor participation.^[88]^[89] A 2014 CIS report on STEM immigration faced similar scrutiny for interpreting flat or declining wages as evidence of no worker shortage, while critics noted overlooked 2-5% wage growth in STEM fields and the omission of immigrants' broader economic contributions, such as foreign-founded firms generating 600,000 jobs and $63 billion in sales in 2012; the analysis also lacked benchmarks against non-STEM occupations.^[90] These challenges often center on household-level versus individual-level data aggregation and selective program inclusions, with pro-immigration sources like Cato prioritizing long-term fiscal netting over short-term household snapshots. CIS has responded to welfare critiques by defending household metrics as reflective of real fiscal burdens on taxpayers, citing Census Bureau validations.^[91]

Legal Defenses Against Hate Group Designations

The Center for Immigration Studies (CIS) has faced designation as an anti-immigrant "hate group" by the Southern Poverty Law Center (SPLC) since at least 2009, a label CIS has contested through legal action and public statements, arguing it constitutes defamation intended to suppress policy research on immigration restriction.^[92] In January 2019, CIS filed a civil lawsuit under the Racketeer Influenced and Corrupt Organizations (RICO) Act against SPLC President Richard Cohen and former senior staffer Heidi Beirich, alleging that the "hate group" designation was part of an extortionate scheme to financially ruin organizations opposing high immigration levels by pressuring funders and partners to withdraw support.^[92] The complaint claimed that SPLC's tactics, including public labeling and monitoring, formed a pattern of racketeering activity that violated federal law, seeking damages and injunctive relief to halt the designations.^[92] The district court dismissed the case in September 2019, ruling that the SPLC's statements were non-actionable opinions protected by the First Amendment rather than verifiable facts, and that CIS failed to adequately plead a RICO enterprise or proximate causation for any alleged injuries.^[93] On appeal, the U.S. Court of Appeals for the D.C. Circuit affirmed the dismissal in April 2020, holding that the "hate group" label reflected subjective assessments of bias rather than falsifiable assertions, and that CIS's claims of economic harm from lost funding were too speculative to support RICO liability.^[94] CIS petitioned the U.S. Supreme Court for certiorari in 2020, contending that the lower courts erred in shielding SPLC's designations from scrutiny and that such labels effectively censor dissenting viewpoints on immigration policy, but the petition was denied without comment later that year.^[95] Beyond litigation, CIS has defended against the designation by emphasizing its research methodology and non-partisan status, with director Mark Krikorian publicly criticizing SPLC's "hate map" as a tool for ideological enforcement rather than objective monitoring of extremism.^[96] In responses to media inquiries and congressional scrutiny, CIS has highlighted SPLC's history of overbroad labeling—including against mainstream conservative groups—as evidence of diminished credibility, arguing that the designation conflates policy advocacy with hate ideology without empirical substantiation.^[96] These efforts underscore CIS's position that legal protections for speech do not extend to what it terms smears designed to delegitimize data-driven critiques of immigration's fiscal and cultural impacts, though courts have consistently prioritized First Amendment safeguards for such characterizations.^[97]

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