Xavier Becerra’s campaign rocked by horrifying claims about missing migrant kids under his watch | 27 July 2026 | Xavier Becerra faces a renewed scandal over his tenure as Joe Biden’s health secretary after a whistleblower came forward to expose the horrific levels of abuse and exploitation of hundreds of thousands of migrant children faced while in detention in California. A caseworker at the Pomona Fairplex alleges children faced abuse and chaotic releases, were separated from young siblings, and sent to unverified addresses or secretly moved in the dead of the night — some never to be seen again — while the complex also accepted fake documents from sponsors. During his time as Biden’s health secretary from 2021 to 2025, the U.S. faced an overwhelming border crisis, with just under 480,000 unaccompanied minors crossing the border. The HHS was the federal agency legally mandated to care for and protect unaccompanied migrant children.