In a dramatic White House shakeup, President Donald Trump announced Thursday that Mike Waltz, his National Security Adviser, will be nominated as the United States Ambassador to the United Nations. The move comes amid widespread reports that Trump planned to remove Waltz from his NSC post, marking the first major staff change since the president’s January inauguration.
Trump confirmed the nomination on Truth Social, praising Waltz’s dedication: “Mike Waltz has worked hard to put our Nation’s Interests first. I know he will do the same in his new role.” In the interim, Trump said, Secretary of State Marco Rubio will serve as National Security Adviser while continuing to lead the State Department and oversee USAID and the National Archives.
Waltz’s Tumultuous Exit as National Security Adviser
Mike Waltz’s tenure at the National Security Council ended abruptly after a series of missteps eroded his standing in the West Wing. Sources say Waltz’s influence began to wane following a high-profile security breach: he inadvertently added Atlantic journalist Jeffrey Goldberg to a Signal group chat where officials discussed sensitive military strikes. Initially spared dismissal to avoid chaos, Waltz never fully regained trust among top aides, including White House Chief of Staff Susie Wiles.
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- Signal App Fiasco: Inclusion of a journalist in covert military discussion undermined security protocols.
- Internal Distrust: Wiles and other senior officials remained unimpressed, citing lapses in judgment.
- Laura Loomer’s Intervention: The far-right activist lobbied Trump to oust Waltz during an Oval Office meeting, underscoring his vulnerability within MAGA circles.
By Tuesday, Waltz’s daily presence alongside Trump had vanished: he remained on the Andrews tarmac while colleagues flew on to Michigan, a sign of his fading clout.
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Rubio Steps In—Juggling Four Key Roles
With Waltz headed to a politically charged Senate confirmation, Trump tapped Marco Rubio to fill the NSC slot temporarily. Rubio now juggles four roles:
- Secretary of State
- Interim National Security Adviser
- National Archivist
- Acting USAID Administrator
Foreign diplomats, particularly those from Middle Eastern capitals, reacted with apprehension, questioning who would provide consistent strategic guidance.
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GOP Reactions and the Hegseth Debate
Democrats on Capitol Hill seized on Waltz’s ouster to argue that Defense Secretary Pete Hegseth. Who shared classified Yemen strike details in the same Signal thread—should have been held to account instead. Senator Mark Kelly stated, “They’re holding the wrong guy accountable,” highlighting Hegseth’s more serious security lapse. Yet Trump retained Hegseth, mindful of his MAGA backing and the complexity of reconfirming a defense chief.
Waltz’s Next Challenge: UN Ambassador Confirmation
Nomination as UN Ambassador lands Waltz in another fraught confirmation process. Insiders note Trump’s lukewarm view of the UN envoy role, he delayed his first pick, Elise Stefanik. And let her remain in Congress after a narrow House majority emerged. Waltz now faces a Senate divided over his performance at the NSC and his broader national security credentials.
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