Trump Replaces National Security Adviser Waltz with UN Ambassador Nomination

President Donald Trump has removed Mike Waltz as national security adviser following a scandal in which Waltz accidentally included a journalist in a Signal chat discussing sensitive military plans. Waltz's handling of the incident, along with broader concerns about his ability to manage his team and suspicions of leaking, led to his ouster despite Trump's earlier public defense. Trump has nominated Waltz to be the next U.S. Ambassador to the United Nations, a position vacated after Rep. Elise Stefanik's nomination was withdrawn to maintain the Republican majority in the House. Secretary of State Marco Rubio will serve as acting national security adviser for now. The move is widely seen as a victory for the MAGA wing of the Republican Party, which had pressured for Waltz's removal. Waltz is expected to face a contentious Senate confirmation process due to the security breach.