President Trump is tapping national security adviser Mike Waltz to be his ambassador to the United Nations following reports of his ouster in the midst of a controversy over a group text chat.

Trump also announced Thursday he naming his secretary of State Marco Rubio to replace Waltz as national security adviser in an interim basis.

“I am pleased to announce that I will be nominating Mike Waltz to be the next United States Ambassador to the United Nations. From his time in uniform on the battlefield, in Congress and, as my National Security Advisor, Mike Waltz has worked hard to put our Nation’s Interests first. I know he will do the same in his new role,”  Trump said on Truth Social.

Trump added, “In the interim, Secretary of State Marco Rubio will serve as National Security Advisor, while continuing his strong leadership at the State Department. Together, we will continue to fight tirelessly to Make America, and the World, SAFE AGAIN. Thank you for your attention to this matter!”

Waltz leaving his post at the National Security Council and moving to the ambassador role, which will require Senate confirmation, marks the first major shifting of positions in Trump’s second administration.

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