Trump administration National Security Advisor Mike Waltz and other staffers are out at the National Security Council, sources confirmed to Fox News.

Fox News confirmed Waltz and his deputy, Alex Wong, were ousted Thursday. Sources said additional staffers removed from the office will likely be announced, and President Donald Trump is expected to speak publicly about the matter. 

Waltz, who previously served as a Florida congressman and as a decorated combat Green Beret, has come under fire from Democrats and critics since March, when the Atlantic magazine's Editor-in-Chief Jeffrey Goldberg published a firsthand account of getting added to a Signal group chat with top national security leaders, including Waltz, Secretary of Defense Pete Hegseth and CIA Director John Ratcliffe, while they discussed strikes against Yemen terrorists.

Waltz took responsibility for the inclusion of a journalist in the group chat, telling Fox News' Laura Ingraham, "I take full responsibility. I built the group," he said. "It's embarrassing. We're going to get to the bottom of it."... Read More: FOX News