A memo appears to allow Immigration and Customs Enforcement officials to target programs that let in more than a million people.

The acting head of the Department of Homeland Security (DHS) is allowing immigration enforcement agents to swiftly deport those who came to the U.S. under multiple pathways established under the Biden administration.

Migrants allowed into the U.S. temporarily under certain Biden administration programs can be quickly expelled, according to a memo sent by the Trump administration's acting secretary of homeland security.