White House Press Secretary Sean Spicer on Monday afternoon responded to reports that a group of U.S. diplomats were drafting a memo to condemn President Donald Trump’s executive order denying entry to people from seven predominantly Muslim countries.

Spicer said that the career State Department employees should either fall in line behind Trump and his executive order or leave the agency.

“I think that they should get with the program or they can go,” Spicer said at the daily press briefing, referring to State Department staff who “have a problem” banning people from the seven countries.

Spicer defended the executive order, insisting that it was about safety and arguing that the order “has been blown way out of proportion and exaggerated.”

“This is about the safety of America,” he said. “It’s his number one duty, as it should be with any leader, to keep our people and our institutions safe from attack.”