WASHINGTON — Homeland Security Secretary Markwayne Mullin said Thursday that the Trump administration has found at least 146,000 migrant children that were unaccounted for during the Biden administration.

A total of 450,000 went missing under former President Joe Biden — and “nearly 300,000” are still unaccounted for, Mullin said at a news conference.

“We’re investigating reports to where some of these kids claim that they were raped 6[00] to 700 times,” he added. “I don’t care who you are. I don’t care if you have kids. You don’t have kids. I don’t care if you’re a liberal, you’re independent, you’re a Democrat. You’re Republican.

“If you can’t stand for law enforcement to go find these kids, who are you? Who are you?” Mullin fumed. “And do you know where we’re finding the most of them: sanctuary cities.”

Major metropolitan centers like New York City, Chicago and Los Angeles have refused to cooperate with federal immigration enforcement as a result of their sanctuary policies.

The Department of Homeland Security Office of Inspector General revealed the hundreds of thousands of missing migrant kids in an August 2024 report.

Between fiscal years 2019 and 2023, more than 448,000 unaccompanied minors were in Immigration and Customs Enforcement’s custody before being transferred to the custody of the Department of Health and Human Services for resettlement with domestic sponsors, the IG’s report found.

Of those, 291,000 migrant children were never issued notices to appear in federal immigration courts after being released from HHS.

And 32,000 never showed up at all for their scheduled court dates.

The rest are presumed to be missing.

Acting Attorney General Todd Blanche in the same press conference announced charges against three Guatemalan nationals in Ohio who had submitted false information to serve as sponsors for kids and get payouts.

Sen. Chuck Grassley (R-Iowa) applauded Mullin and Blanche for announcing the efforts to prosecute those who abused the migrant-sponsor program and let hundreds of thousands of kids go missing.

“I spent YRS sharing whistleblower evidence of migrant child trafficking w the Biden admin while my Democrat colleagues turned a blind eye,” Grassley posted on X.

Trump’s HHS has also prioritized investigating tens of thousands of leads about migrant kids abused by sex predators or trafficked by gangs like MS-13 due to lax sponsor vetting.

Records from HHS’ Office of Refugee Resettlement previously revealed that Biden-era officials ignored obvious safety risks — with then-HHS Secretary Xavier Becerra likening the ideal turnover rate of the kids’ release to an “assembly line,” according to The New York Times.