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

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

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

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

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

Ukraine minerals agreement was paved with challenges. Those included an unprecedented Oval Office blowout, hundreds of ...

The Secretary of State's comments came after President Donald Trump questioned whether Russian President Vladimir Putin wants ...

Secretary of State Marco Rubio says the U.S. may withdraw from mediation talks with Ukraine and Russia if President Donald ...

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

Secretary of State Marco Rubio said there are reasons to be optimistic, but also asserted there are “other issues” on which ...

Secretary of State Marco Rubio said Sunday that the “only solution” for the war in Ukraine is a negotiation where both Russia and Ukraine “give up something.” “There is no military ...

This is a "very critical week" that will determine whether the Trump administration continues with negotiations over ending the war, Secretary of State Marco Rubio said in an April 27 interview.