The White House is planning a “big immigration launch” Tuesday morning that will focus on the implementation of the recent Department of Homeland Security proposal that called for the hiring of thousands of officers and fast-tracking deportations, a senior administration official said.

The DHS plan was signed Friday by the agency’s new secretary, John Kelly. If approved by President Trump, it would give federal authorities more power to aggressively detain and deport illegal immigrants inside the country and along U.S. borders.

Kelly called for 10,000 additional ICE officers and agents and 5,000 new hires at the U.S. Customs and Border Protection agency.

“The surge of immigration at the southern border has overwhelmed federal agencies and resources and has created a significant national security vulnerability to the United States,” wrote Kelly, citing 10,000 to 15,000 more apprehensions along that border between 2015 and 2016.