"At the same time, the president continues to call on congressional Democrats to cease their staunch opposition to border security and to stop blocking measures that are vital to the safety and security of the United States," it said.
In his presidential memorandum, Trump said human smuggling operations, smuggling of drugs and other contraband, and entry of gang members and other criminals at the border of the US threatened its national security and public safety.
"The backlog of immigration-related cases in our administrative system is alarmingly large and has hindered the expeditious adjudication of outstanding cases. Border-security and immigration-enforcement personnel shortages have become critical," he said.