In a message posted online Thursday, the department’s deputy undersecretary for management, Bill Todd, cited the agency’s core national security mission as the reason many furloughed employees were being asked to return to work next week.
Trump worked to escalate the showdown Friday, reissuing threats to close the US-Mexico border to pressure Congress to fund the wall and to shut off aid to three Central American countries from which many migrants have fled.
Financing for about a quarter of federal government programs - including the departments of Homeland Security, Justice and Agriculture - expired at midnight and will not be renewed until a deal is done.
The unexpected turn of events dragged the Senate proceedings into the wee hours and underscored the persistent inability of Congress and Trump to deal efficiently with Washington's most basic fiscal obligations of keeping the government open.
House Democratic leaders opposed the measure -- arguing it should resolve the plight of immigrant ``Dreamers'' who face deportation after being brought to the US illegally as children -- but not with all their might.
Trump's comments were strikingly disconnected from the progress on Capitol Hill, where the House passed a short-term spending measure Tuesday night and Senate leaders were closing in on a larger, long-term pact ahead of a Thursday night deadline.