Secretary of State Marco Rubio now holds four top roles in the Trump administration, raising questions about power, trust – and whether one man can do it all.

Former Florida Senator and current Secretary of State Marco Rubio will serve as the acting national security adviser, ...

Rubio’s dual-hatted role comes on top of him serving as acting administrator of the largely shut down USAID and as acting ...

Marco Rubio was just two weeks into his new job when he got a critical lesson in being President Donald Trump’s secretary of ...

President Trump said Thursday he is removing Mike Waltz from his role as national security adviser and in the interim replacing him with Secretary of State Marco Rubio. Trump said he's nominating ...