Homeland Security Secretary Markwayne Mullin and Acting Attorney General Todd Blanche announced Thursday that federal agencies have located 146,000 unaccompanied migrant children who crossed the southern border during the Biden administration and were released to sponsors, but that nearly 300,000 more remain unaccounted for.

The officials delivered the figures at a press conference held at the Justice Department in Washington. The numbers represent a sharp increase from roughly 22,000 children located as of last summer, a pace that suggests the administration has dramatically accelerated its tracking efforts in recent months.

The scope of the problem is staggering. Administration officials said more than 500,000 unaccompanied migrant children entered the United States during the Biden administration after crossing the U.S.-Mexico border without a parent or guardian. Those children were transferred to the care of the Department of Health and Human Services and subsequently released to sponsors living in the United States. What happened to many of them after that handoff remains unknown.

Mullin levels sharp criticism at Biden-era oversight

Secretary Mullin did not hold back about the prior administration's handling of the crisis. As Newsmax reported, Mullin laid the blame squarely on the Biden administration's failure to track children after releasing them to sponsors.

"We found 146,000 kids so far, 146,000 kids. We still have nearly 300,000 missing."

That alone would constitute a scandal of historic proportions in any functioning government. But Mullin went further, describing what investigators have encountered as they work through individual cases.

"When we start digging into these cases, and you start hearing the absolute horrific things that took place underneath the Biden administration, either true neglect at best and criminal at worst, to allow 450,000 kids to go missing throughout this country."

The reference to "450,000 kids" in Mullin's remarks appears to encompass the broader universe of children whose status was uncertain before the current administration began its tracking effort. The official figure of nearly 300,000 still unaccounted for reflects the gap that remains after subtracting the 146,000 now located.

What officials did not say

For all the gravity of the announcement, significant questions went unanswered Thursday. Officials did not provide additional details on how the 146,000 children were located. They did not describe the condition or circumstances of those children. And they offered no specifics on the status of efforts to find the nearly 300,000 who remain missing.

The administration also did not specify which federal agencies are participating in the effort beyond DHS and the Justice Department, or what criteria officials use to classify a child as "unaccounted for" versus "located."

Those gaps matter. The difference between a child living safely with a vetted relative and a child who has vanished into an exploitative labor arrangement or worse is the difference between a bureaucratic lapse and a humanitarian catastrophe. The Trump administration has framed the effort as a priority, with federal agencies working to identify children's whereabouts and determine whether they are safe. The results so far suggest the work is far from finished.

A system that released children and looked away

The pipeline that produced this crisis operated in plain sight. Under federal law and longstanding policy, unaccompanied minors who cross the border are transferred from immigration authorities to the Office of Refugee Resettlement within HHS. The agency is supposed to vet sponsors, typically relatives or family friends already in the country, before releasing children into their care. Follow-up contact is meant to ensure the child is safe.

During the Biden years, the sheer volume of arrivals overwhelmed the system. The administration faced political pressure to move children out of overcrowded facilities quickly, and the vetting and follow-up process suffered as a result. The Trump administration's claim that more than 500,000 unaccompanied minors entered the country during that period underscores the scale of the challenge, and the scale of the failure.

Releasing a child to a sponsor is not, by itself, a scandal. Releasing hundreds of thousands of children and then losing track of them is.

The question that hung over Thursday's press conference, and that Mullin's "criminal at worst" language pointed toward, is whether the Biden administration's lax oversight facilitated exploitation. Reports in recent years have documented cases of migrant children working grueling hours in meatpacking plants, construction sites, and other hazardous environments. The absence of follow-up created the conditions for those abuses.

From 22,000 to 146,000

One detail in Thursday's announcement deserves particular attention. Last summer, the number of located children stood at roughly 22,000. The jump to 146,000 represents a more than sixfold increase in under a year. Whatever methods federal agencies are using, and officials declined to elaborate, the pace has clearly accelerated.

That acceleration raises its own questions. If the current administration can locate 124,000 children in a matter of months, why couldn't the prior administration keep track of them in the first place? The answer almost certainly involves resources, will, and priorities. The Biden administration treated the border surge primarily as a messaging problem. The Trump administration, whatever its critics say, has treated the missing children as an operational one.

The broader pattern of institutional accountability failures across the federal government makes this case all the more urgent. When agencies charged with protecting the most vulnerable lose track of hundreds of thousands of children, the public has every right to demand answers, and consequences.

The political stakes

The announcement also carries obvious political weight. The Trump administration has made border security and immigration enforcement central to its governing agenda. Locating missing migrant children serves that agenda while simultaneously exposing what officials describe as a humanitarian failure under Biden.

Democrats have largely avoided engaging with the missing-children issue on its merits, preferring to frame immigration enforcement broadly as cruel or xenophobic. That framing becomes considerably harder to sustain when the subject is children who were abandoned by a system that was supposed to protect them.

Acting Attorney General Blanche appeared alongside Mullin at the press conference but no direct quotes from Blanche were included in the announcement. His presence signals that the Justice Department views the matter as having potential legal dimensions, consistent with Mullin's characterization of some cases as "criminal."

Whether federal prosecutors pursue charges related to the treatment of specific children, or against sponsors who may have exploited them, remains to be seen. The current political climate suggests the administration will not let the issue fade quietly.

Nearly 300,000 still missing

The most sobering number from Thursday is not the 146,000 found. It is the nearly 300,000 who have not been.

Each of those is a child, a minor who crossed the border alone, was processed by the federal government, handed to a sponsor, and then lost to the system. Some may be living safely with family. Others may not be. The government does not know, and under the prior administration, it did not appear especially eager to find out.

The Trump administration has cast the effort as a moral obligation, not merely a policy initiative. Mullin's language, "neglect at best and criminal at worst", frames the Biden administration's conduct in terms that go well beyond political disagreement.

Personnel changes inside the White House have reflected the administration's focus on operational follow-through across multiple fronts. Recent staffing moves suggest an administration that is calibrating its team for sustained policy execution rather than short-term messaging wins.

Still, announcements without details can only carry so much weight. The public needs to know how the 146,000 were found, what condition they are in, and what the plan is for the remaining 300,000. Thursday's press conference opened a window. The administration now has an obligation to keep it open.

What comes next

The DHS posted a link to the press conference on its official X account, signaling that the administration intends to keep public attention on the issue. But public attention is not the same as public accountability. The next steps matter more than the announcement.

Congress should demand a full accounting, not just topline numbers, but case-level data on the children located, the sponsors who received them, and the follow-up (or lack thereof) that occurred under HHS during the Biden years. If Mullin's characterization of "criminal" conduct holds up under scrutiny, referrals should follow.

The administration has shown willingness to fight legal and institutional battles on multiple fronts simultaneously. This one, locating children who were lost on the federal government's watch, deserves to stay at the top of the list.

A government that cannot keep track of the children in its care has failed at the most basic duty there is. Finding 146,000 of them is a start. Leaving 300,000 in the dark is not an option.