DHS "4 Million Illegal Immigrants on Medicaid" — Forensic Fact-Check

Georgetown CCF published its rebuttal on February 26, 2026, identifying multiple distinct inaccuracies in the DHS post. Three of them go to the heart of the claim. ^[1]

Wrong population. CCF notes the KFF graphic "very clearly states it pertains to 'non-citizen households'" — a category that, by definition, includes households like "three U.S. citizens and one legal permanent resident," along with refugees, asylees, DACA recipients, TPS holders, and people on work visas. As CCF put it, "the estimate of 4 million includes millions of families that do not have an undocumented immigrant in the household." The 1.8 million U.S. citizen children in that figure make the point directly: DHS's own source data shows the households it is calling "illegal" are, in large part, American citizens. ^[1]

Wrong mechanism. DHS's post said the households "will be UNENROLLED" and "REMOVED" from Medicaid — language that implies enforcement action against ineligible people. In fact, the KFF figure describes eligible people who may voluntarily disenroll out of fear generated by the policy, not people found ineligible and removed. "These are Medicaid-eligible people voluntarily disenrolling themselves," CCF writes — the opposite of the enforcement narrative DHS's post implied. ^{[1] [3]}

DHS's own rule admits the mechanism. In its November 19, 2025 proposed public charge rule, DHS itself wrote that the projected coverage losses "relate predominantly to enrollment decisions made by those who are not subject to the public charge ground of inadmissibility" — in other words, DHS's own regulatory filing acknowledges that most of the people who would lose coverage are not even the people the policy targets. DHS created the conditions for fear-driven disenrollment through its own rule, then cited the resulting disenrollment as if it were evidence of an "illegal immigrant" problem. ^[4]

There are two separate KFF-sourced figures in circulation here, and DHS's post conflates them. In its own proposed rule, DHS estimated that 6.1 million Medicaid enrollees and about 600,000 CHIP enrollees — 6.6 million combined — live in a household with at least one noncitizen; DHS then applied a 10.3% disenrollment rate to project roughly 660,000 people disenrolling. KFF's independent analysis of the same American Community Survey data instead put the noncitizen-household population at about 13.5 million Medicaid/CHIP enrollees, including 5.6 million citizen children, and projected that a 10%–30% chilling-effect disenrollment rate could mean 1.4 million to 4.1 million people disenrolling — which is the range the "4 million" figure in DHS's own graphic is drawn from. In no version of either estimate does the underlying ACS data identify anyone as undocumented; it is a household-level noncitizen count, not a count of unauthorized immigrants. ^[3]

DHS's own regulatory estimate for total disenrollment (≈660,000) is a small fraction of the 4-million-plus figure it publicized on social media — DHS's official rule projects roughly two to six times fewer disenrollments than the scenario range its own graphic highlighted. ^[3]

Federal law under the 1996 welfare reform act has long barred undocumented immigrants from federally funded Medicaid, CHIP, and Medicare; the narrow exception is Emergency Medicaid, which reimburses providers for emergency stabilization care regardless of status. ^{[2] [19]} Pew Research found that, as of 2023 Current Population Survey data, 9.2% of Medicaid enrollees are foreign-born noncitizens and 84.2% were born in the United States. ^[6] KFF separately found that eligible noncitizen immigrants account for about 6% of Medicaid and CHIP enrollees nationally. ^[2]

The fiscal argument behind the DHS post does not hold up against the actual numbers. Emergency Medicaid — the only Medicaid access available to undocumented immigrants under existing law — cost $3.8 billion in FY2023, or 0.4% of total Medicaid spending that year. KFF found Emergency Medicaid spending on noncitizens represented less than 1% of overall Medicaid spending across fiscal years 2017 through 2023. ^[5]

Much of Emergency Medicaid spending goes toward labor and delivery for pregnant patients presenting at emergency rooms — care that cannot legally be denied under EMTALA regardless of immigration status; Georgetown CCF describes this emergency-only coverage as representing "less than half of one percent" of Medicaid spending. ^[19] Even accounting for the roughly 6% of enrollees who are lawfully present noncitizens legitimately eligible for Medicaid, the maximum theoretical savings from eliminating all noncitizen Medicaid costs would be a small single-digit share of total spending — nowhere near what the framing of a "4 million illegal immigrant" problem implies. ^[2]

H.R. 1's Medicaid cuts total $911 billion over 10 years — roughly 240 times the size of the entire annual Emergency Medicaid program the "illegal immigrant" framing invokes. ^[7] As the ACLU put it: "H.R. 1... made the biggest cut to Medicaid since it was created in the 1960s," and "the politicians who supported H.R. 1 took health care away from millions, while giving $170 billion in taxpayer dollars to an immigration police force larger than most of the world's militaries." ^[8]

DHS's claim rests on projections of voluntary disenrollment. That such chilling effects occur is not speculative — it is documented history and current survey data. Migration Policy Institute analysis found that during the first three years of the first Trump administration, participation in TANF, SNAP, and Medicaid declined twice as fast among noncitizens as among citizens. ^[16]

The American Hospital Association — a hospital industry trade group, not an immigrant advocacy organization — filed formal comments on December 19, 2025 warning the proposed DHS rule would repeat this pattern, citing that "previous changes to the public charge rule resulted in disenrollment from health care programs, including 8% of children living in citizen-only households who disenrolled from Medicaid and CHIP." ^[15]

The KFF/New York Times 2025 Survey of Immigrants (n=1,805, nationally representative, fielded August 28–October 20, 2025) found that 11% of immigrant adults said they had stopped participating in a government program that helps pay for food, housing, or health care since January 2025 because of immigration-related fears — rising to 17% among parents. The same survey found the share of immigrant adults who reported skipping or postponing health care in the past year rose from 22% to 29% between 2023 and 2025. ^{[17] [18]}

One in four U.S. children has an immigrant parent. The measurable effect of this policy pattern is not enforcement against undocumented immigrants — who were never eligible for full Medicaid — but American citizens and lawfully present immigrants disenrolling from coverage they are entitled to, out of fear. ^[14]

The February 2026 DHS post did not happen in isolation. In summer 2025, the Centers for Medicare and Medicaid Services (CMS) formalized a data-sharing agreement with ICE — a reversal of prior assurances that Medicaid data would not be used for immigration enforcement. ^[12]

The CMS-ICE agreement, formalized in July 2025 and noticed in the Federal Register on November 25, 2025, allows ICE to access Medicaid enrollee data including name, address, Medicaid ID, Social Security number, date of birth, sex, phone number, ethnicity, race, banking information, and IP addresses, for the stated purpose of helping "identify and locate aliens in the United States." ^{[10] [11]}

California's attorney general led a coalition of 22 states in suing over the agreement; a court issued a preliminary injunction limiting the data DHS could receive to a narrow set of fields and to individuals not lawfully present. Georgetown CCF has separately warned that Medicaid's T-MSIS data system cannot reliably distinguish undocumented from lawfully present immigrants within Emergency Medicaid records specifically, since those records do not require disclosure of immigration status — raising the risk that data sharing captures people the court order was meant to exclude. ^{[11] [12]}

KFF Health News reported in February 2026 that hospitals and states faced a genuine dilemma over whether to tell immigrant patients their Medicaid data had been shared with ICE. Georgetown CCF's Leonardo Cuello warned in that reporting that if hospitals disclose the data-sharing, "it is foreseeable that many immigrants would simply stop getting emergency medical treatment" — notable given that roughly half of Emergency Medicaid claims involve childbirth. ^[13]

The DHS February 2026 post also was not the first time in 2025–2026 that officials or allied accounts mischaracterized KFF or government noncitizen-household data as an "illegal immigrant" Medicaid problem. In May 2025, President Trump claimed "millions of Illegal Aliens" would be removed from Medicaid under the House reconciliation bill; FactCheck.org found the actual CBO-cited figure (1.4 million) referred to people losing state-funded programs, not federal Medicaid, and that undocumented immigrants were never eligible for Medicaid to begin with. ^[21] Georgetown CCF separately fact-checked a White House "mythbuster" sheet on Medicaid and immigrants in June 2025, finding it similarly riddled with inaccuracies. ^[20] The DHS post is best read as the latest, and most viral, instance of a recurring messaging pattern rather than an isolated error.

H.R. 1 — the One Big Beautiful Bill Act — passed the House 218–214 and the Senate 51–50 (with Vice President Vance casting the tie-breaking vote), and was signed by President Trump on July 4, 2025, more than seven months before DHS's February 2026 post. It contains the largest cuts to Medicaid in the program's history: CBO and KFF estimate $911 billion in reduced federal Medicaid spending over 10 years, contributing to an estimated 10 million more people uninsured by 2034. ^[7]

Separately from H.R. 1's Medicaid provisions, KFF estimates that the 2025 tax and budget law's eligibility restrictions on lawfully present immigrants — spanning Medicaid/CHIP, ACA marketplace coverage, and Medicare — will leave about 1.4 million lawfully present immigrants uninsured, including refugees, asylees without green cards, TPS holders, people on work visas, and DACA recipients who lost eligibility through a separate regulatory action. ^[9]

The recurring "illegal immigrants on Medicaid" narrative — of which DHS's February 2026 post is the latest example — has functioned to frame cuts and eligibility restrictions affecting primarily U.S. citizens and lawfully present immigrants as immigration enforcement, even though undocumented immigrants were already categorically ineligible for the coverage being cut. ^{[1] [9]}

The same law that cut Medicaid by $911 billion also increased funding for immigration enforcement. As the ACLU documented, the politicians who supported H.R. 1 funded "an immigration police force larger than most of the world's militaries and detention camps that could, over time, hold 750,000 children, immigrants with legal status, and other long-time residents" — paid for in part through Medicaid cuts. ^[8]

State-level context: as of April 2026, 38 states covered lawfully residing immigrant children in Medicaid and CHIP without the standard five-year waiting period. ^[14] 1.8 million U.S. citizen children were identified, in DHS's own source graphic, as part of the population its post mischaracterized as "illegal immigrants." 22 states sued over CMS's Medicaid data-sharing agreement with ICE. ^[11] The population that actually loses coverage under this pattern of policy and messaging is overwhelmingly composed of American citizens and people lawfully present in the country.

The DHS claim that "up to 4 million illegal immigrant households" would be removed from Medicaid is false on multiple, independent grounds. The population label is wrong: the underlying KFF data describes noncitizen households, not illegal immigrant households, and DHS's own embedded graphic shows that 1.8 million of the 4 million are U.S. citizen children. The mechanism is wrong: the figure represents people projected to voluntarily disenroll out of fear, not people identified as ineligible and removed through enforcement. And the premise is wrong: undocumented immigrants have been barred from federally funded Medicaid, CHIP, and Medicare for decades, with the narrow exception of Emergency Medicaid.

This is not a matter of framing or interpretation. The KFF graphic DHS itself reproduced states plainly that it describes "non-citizen households." The post was copied from — and was less accurate than — an X account Georgetown CCF says espouses beliefs associated with white supremacy, including replacement theory. DHS's own regulatory filing, three months earlier, had already acknowledged that the projected coverage losses fall predominantly on people not subject to the policy it was defending. The claim fits a documented, recurring pattern of officials and allied accounts mischaracterizing noncitizen-household data as an "illegal immigrant" Medicaid crisis across 2025 and 2026.