The White House considers the Signal chat leak case "closed," press secretary Karoline Leavitt told the media Monday.

Although Trump decided not to fire his national security adviser over the Signal group chat, Waltz’s position is tenuous, officials say.

President Donald Trump stood by Mike Waltz Tuesday after it was reported that the national security advisor inadvertently added a journalist to a group chat discussing war plans. Trump told NBC News in a phone interview that Waltz had “learned his lesson” from the incident and that he was a “good man.