National Security Adviser Mike Waltz is stepping down from his role in the White House. Shortly after news of his departure emerged, President Trump announced that he intends to nominate Waltz as the next U.S. ambassador to the United Nations, a position that requires Senate confirmation.
In the meantime, Secretary of State Marco Rubio will take over as national security adviser, continuing to lead the State Department as well.
Trump praised Waltz’s service in both the military and government, stating that he believes Waltz will prioritize America’s interests at the U.N. Waltz responded on social media, expressing gratitude for the opportunity to continue serving the country.
According to sources, the decision to nominate Waltz came suddenly on Thursday, though discussions about removing him from the National Security Council (NSC) had been ongoing.
Waltz’s exit follows internal concerns about his handling of NSC staffing and fallout from a past incident involving a Signal group chat.
In March, Waltz mistakenly added journalist Jeffrey Goldberg to a secure group, leading to leaked discussions about military plans in Yemen. Though no classified details were reportedly compromised, the incident sparked internal debate about whether Waltz should resign. Trump opted not to remove him at the time, later saying Waltz had “learned a lesson.”
Despite the controversy, Trump is seen as respecting Waltz and opted to move him into a high-profile diplomatic role instead of forcing him out.
Deputy adviser Alex Wong’s future at the NSC remains unclear.
State Department spokesperson Tammy Bruce appeared unaware of Rubio’s interim appointment when asked during a Thursday briefing.
There’s speculation over who will permanently fill the national security adviser position. While U.S. envoy Steve Witkoff is unlikely to be chosen, names such as Stephen Miller and Seb Gorka have surfaced among Trump allies. Meanwhile, Ric Grenell publicly declined interest in the role.
The departures come amid a broader shake-up at the NSC, following a series of earlier staff firings allegedly triggered by concerns over loyalty to Trump.
