The U.S. Department of Homeland Security (DHS) is seeking to deputize criminal investigators from the Internal Revenue Service (IRS) and other Treasury Department personnel to assist with immigration enforcement,

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.

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.