Overview

• Mike Waltz, Donald Trump's national security adviser, has resigned and will transition to serving as U.S. ambassador to the United Nations.
• The resignation follows the 'Signalgate' scandal, where classified military plans were accidentally shared with a journalist through a Signal group chat.
• Marco Rubio, the current Secretary of State, has been appointed interim national security adviser, marking a rare dual role in U.S. foreign policy leadership.
• An internal Pentagon investigation into Defense Secretary Pete Hegseth's role in the security breach remains ongoing.
• Steve Witkoff is reportedly being considered as a potential permanent replacement for Waltz, though no official decision has been announced.