Trump Ousts Adviser, Rubio Named Interim Security Chief

President Donald Trump removed Mike Waltz as national security adviser after Waltz's accidental leak of sensitive military information via a Signal chat. Waltz and his deputy, Alex Wong, have both left their posts, with Waltz nominated to serve as U.S. ambassador to the United Nations, replacing withdrawn nominee Rep. Elise Stefanik. Secretary of State Marco Rubio is serving concurrently as interim national security adviser, the first such dual role since Henry Kissinger. The shakeup comes amid global crises in Ukraine and the Middle East, raising the stakes for stable national security leadership. Billionaire Steve Witkoff, noted for his close ties to Vladimir Putin and Russian oligarchs, is under consideration for the permanent adviser role, prompting concerns among U.S. and Ukrainian officials. The rapid personnel turnover reflects growing internal turmoil and President Trump's frequent rotation of key security positions.