Rubio’s dual-hatted role comes on top of him serving as acting administrator of the largely shut down USAID and as acting head of the National Archives. It puts him in a similar position to that of Trump’s longtime personal friend and golfing buddy Steve Witkoff.

President Donald Trump has announced he’s naming Secretary of State Marco Rubio as acting national security adviser to replace Mike Waltz, whom he is nominating for United Nations ambassador

U.S. President Donald Trump ousted his national security adviser Mike Waltz on Thursday and named Secretary of State Marco Rubio as his interim replacement in the first major shakeup of Trump's inner circle since he took office in January.

Key Takeaways President Donald Trump's second term in office has been marked by uncertainty, although the economy has rolled with the punches so far.Trump is one of five postwar presidents who had the economy shrink in their first 100 days.

President Trump's first 100 days in office have already started to reshape international trade, but tariffs and other trade policies are also reshaping international geopolitical relations. “Marketplace Morning Report” host David Brancaccio spoke with Ian Bremmer,