Trump will nominate Waltz for the UN ambassador, Rubio, he will be an interim national security advisor

President Donald Trump announced Thursday that he will nominate Michael Waltz to be an ambassador of the United States before the United Nations, while Secretary of State Marco Rubio will serve as an interim national security advisor.
“I am pleased to announce that I will name Mike Waltz to be the next United States ambassador to the United Nations,” Trump wrote on his conservative social networks. “Since his time in uniform on the battlefield, in Congress and, as a national security advisor, Mike Waltz has worked hard to first put the interests of our nation. I know he will do the same in his new role.”
“Meanwhile, Secretary of State Marco Rubio will serve as a national security advisor, while continuing his strong leadership in the State Department,” Trump continued. “Together, we will continue to fight tirelessly to make the United States and the world safe again. Thank you for your attention to this matter!”

National Security Advisor Mike Waltz speaks during a television interview at the White House, on May 1, 2025, in Washington.
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The Secretary of State, Marco Rubio, delivers comments during the signing ceremony of the Declaration of Principles with the Democratic Republic of the Congo, the Minister of Foreign Affairs, Therese Kayikwamba Wagner, in the State Department, on April 25, 2025 in Washington.
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The sources told ABC News on the early Thursday that Waltz was expected to leave his post.
The measure occurred when President Trump has been frustrated more and more by Waltz after he was under intense scrutiny by inadvertently adding a journalist to a signal talk with Trump’s senior officials on an US military strike against Hutíes rebels in Yemen.
Waltz was present at the Trump cabinet meeting on Wednesday, where he offered praise for the leadership and strength of the president on the world stage during his first 100 days in office.
Trump publicly defended Waltz after the accident of the March signal, telling NBC News the day after the details came to light in an article by Jeffrey Goldberg in Atlantic that Waltz “has learned a lesson and is a good man.”
The Atlantic in the future was asked more about Waltz’s future in a April 24 interview. He said Waltz was “well” despite being “beaten” after accidentally adding Goldberg to the group chat.

President Donald Trump, accompanied by the United States National Security Advisor, Michael Waltz, takes a question from a journalist during a meeting with the NATO general secretary Mark Rutte (L) at the Oval Office of the White House, on March 13, 2025 in Washington.
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Trump also said in that interview that Defense Secretary Pete Hegseth, who was also criticized by the signal fiasco, was “safe.”
“I think we learned: maybe I don’t use a sign, okay?” Trump said about the controversy. “If you want to know the truth. Frankly, I would tell these people not to use signal, although many people have used it. But, whatever, whoever has it, who possesses it, would not like to use it.”
This is a development story. Consult the updates again.