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

U.S. Secretary of State Marco Rubio will attend the informal NATO foreign ministers meeting in Turkey on May 14-16 to discuss ...

U.S. Secretary of State Marco Rubio spoke with British Foreign Secretary David Lammy and German Chancellor Friedrich Merz in ...

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

Head of the Office of the President of Ukraine Andriy Yermak had a phone call with US Secretary of State Marco Rubio. The ...

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

Ukraine wants to hold another meeting of national security advisors with the participation of the United States, Britain, ...

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

Secretary of State Marco Rubio threatened again to walk away from mediation unless Russia and Ukraine put forward "concrete ...

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

India and Pakistan have agreed to an immediate ceasefire following heightened tensions sparked by the April 22 terror attack ...