We can, should, and will polygraph personnel.”White House officials have previously expressed frustration with the pace of deportations, blaming it in part on recent leaks revealing cities where authorities planned to conduct operations.

Todd Lyons, the former assistant director of field operations for the agency's enforcement arm, will serve as acting ICE director.

Homeland Security Secretary Kristi Noem on Sunday announced new leadership at the agency tasked with immigration enforcement as she also pledged to step up lie detector tests on employees to identify those who may be leaking information about operations to the media.