(NBC News) The Trump administration has announced a major shake-up in the Department of Homeland Security.
Secretary of Homeland Security Kirstjen Nielsen has resigned, under pressure from President Trump.
“I share the president’s goal of securing the border,” Nielsen said. “I will continue to support all efforts to address the humanitarian and security crisis on the border.”
The president announced Nielsen’s departure on Twitter over the weekend.
Sources say his frustration with Nielsen had intensified in recent months.
NBC News has learned the president wanted to reinstate the controversial policy of separating migrant families at the southern border, but Nielsen resisted.
Her resignation comes just two days after travelling to the border with President Trump.
It’s not just a change at the top. Secret Service Director Randolph “Tex” Alles, who reported to Nielsen, is also out.
An administration official says it’s part of planned changes throughout the Department of Homeland Security.
The president has named James Murray to take over Secret Service, starting next month, but other posts within the department, including ICE and FEMA, are still operating with acting directors.