In a dramatic shift in fortunes, Rubio is the first person since Henry Kissinger to be both secretary of state and national ...

With four hats, including national security adviser, the former Trump rival is defying predictions he’d be a weak player.

The man who Trump back then scornfully referred to as “Little Marco“ now has unmatched stature in the new administration. On Friday he became the most powerful Secretary of State since Henry Kissinger ...

Top diplomat, foreign aid chief, national archivist and now national security advisor. Marco Rubio's expanding resume ...

As Secretary of State, Marco Rubio has been Donald Trump’s reliable echo on issues like Iran, Ukraine and Gaza. But Steve ...

The newly appointed interim national security adviser is preparing to stay in that role for up to six months, a person close ...

Trump said he's nominating Michael Waltz to be ambassador to the United Nations, while Secretary of State Marco Rubio will ...

United States Secretary of State Marco Rubio held a congratulatory call with Prime Minister Kamla Persad-Bissessar following ...

Iran has to 'walk away' from uranium enrichment and long-range missile development and it should allow Americans to inspect ...

Fox & Friends co-host Brian Kilmeade took a jab at Secretary of State -- and newly-minted National Security Adviser -- Marco ...

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

FOX News host Sean Hannity asked Secretary of State Marco Rubio for an update on U.S. attempts to get Russia and Ukraine to ...