The request marks the Trump administration’s latest effort to devote more federal resources to fulfill his campaign pledge to deport millions of undocumented immigrants.

The U.S. Department of Homeland Security wants to deputize some Internal Revenue Service criminal investigators and other Treasury Department personnel to perform immigration enforcement, according to a DHS document and an agency spokesperson.

In the memo, Homeland Security Secretary Kristi Noem asked Treasury Secretary Scott Bessent to deputize IRS agents to help with immigration enforcement efforts across the country. That work could include auditing employers believed to have hired migrants living in the U.