President Donald Trump announced on Thursday that he is nominating Michael Waltz to be the next U.S. Ambassador to the United Nations. In the interim, Secretary of State Marco Rubio will also take on the role of National Security Advisor while continuing his duties at the State Department. Trump shared the news on his conservative social media platform, praising Waltz for his dedication to putting the nation’s interests first and expressing confidence in his ability to excel in the new position.
Waltz responded to Trump’s announcement, expressing deep honor in continuing his service to the President and the country. The decision for Rubio to step into the National Security Advisor role came amidst Waltz facing scrutiny for inadvertently adding a reporter to a Signal chat discussing a military strike.
State Department spokesperson Tammy Bruce learned of Rubio’s new role during a press briefing and commended his versatility and familiarity with the President. She acknowledged the fast-paced nature of recent events, likening it to hanging onto a speeding train.
Despite the recent challenges, President Trump has stood by Waltz, describing him as a good man who has learned from past mistakes. Waltz was absent from a prayer event where Rubio was seen conversing with White House personnel. The transition in roles marks a significant development within the administration as the team continues to navigate global challenges.
In this photo, President Donald Trump, accompanied by U.S. National Security Adviser Michael Waltz, answers a reporter’s question during a meeting with NATO Secretary General Mark Rutte in the Oval Office of the White House on March 13, 2025 in Washington. Trump also commented on Defense Secretary Pete Hegseth’s situation, stating that he was considered “safe” despite criticism over the Signal incident. Reflecting on the controversy, Trump advised against using Signal and recommended caution. Additionally, news emerged that Trump would be replacing Waltz with Rubio temporarily as national security adviser. The original report can be found on abcnews.go.com.
