Secretary of State Marco Rubio relayed President Donald Trump’s “disappointment and frustration” during a “frank conversation ...

Secretary of State Marco Rubio emerged from a 40-minute meeting with Russian Foreign Minister Sergei Lavrov on Thursday with ...

The U.S. secretary of state met with his Russian counterpart on the sidelines of a gathering of Southeast Asian nations, ...

The Trump administration has made overtures to a country that Rubio has railed against during most of his career, especially in relation to Russia's backing of countries like Cuba.

Neither Rubio nor Lavrov made any remarks before the meeting, and when asked about his message to his Russian counterpart, ...

An U.S. official says some weapons shipments to Ukraine have resumed, as the country's leader seeks more urgent support from ...

Secretary of State Marco Rubio pushes back on allegations President Donald Trump is excluding Ukraine from peace talks with Russia, dismisses concerns about NATO alliance.

Secretary of State Marco Rubio told "Face the Nation" he believes talks to end the war in Ukraine will only progress if President Trump and Russian President Vladimir Putin meet in person.

Trump also struck an optimistic note, and declined to say whether he would in fact walk away from the talks entirely or if he believed Russian President Vladimir Putin was stalling.

A declassified CIA memo released Wednesday challenges the work intelligence agencies did to conclude that Russia interfered ...

Secretary of State Marco Rubio said the United States would decide on Russia‘s intentions regarding a peace deal “within weeks.” Rubio, speaking at a Friday meeting of NATO foreign ministers ...

Secretary of State Marco Rubio mocked Ukrainian President Volodymyr Zelensky‘s demands for security guarantees when peace with Russia is still not guaranteed. Ukraine just passed its third-year ...