FILE PHOTO: U.S. Secretary of State Marco Rubio looks on during a swearing-in ceremony of Special Envoy Steve Witkoff in the ...

Last week, Rubio made history again when Trump tapped him as national security adviser after former U.S. Rep. Mike Waltz, ...

Secretary of State Marco Rubio's new job as national security adviser sets the former Donald Trump rival up for a bigger role ...

Secretary Rubio’s new role as national security adviser may be unsustainable, according to foreign policy experts.

The man who Trump back then scornfully referred to as “Little Marco“ now has unmatched stature in the new administration. On ...

Secretary of State Marco Rubio indicated Thursday that a peace deal between Russia and Ukraine is still on the horizon but ...

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

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

Trump told reporters that “Marco is right” that the U.S. wants the war to end, but “hopefully we won’t have to” walk away ...