WASHINGTON—Secretary of State Marco Rubio has been thrown into two top national security jobs at once as President Donald Trump presses forward with his top-to-bottom revamp of US foreign policy ...

U.S. officials say the State Department has halted the scheduling of new visa interviews for foreign students hoping to study ...

WASHINGTON—US Secretary of State Marco Rubio travels this week to a gathering of top diplomats from Nato countries and is sure to find allies that are alarmed, angered and confused by the Trump ...

BRUSSELS—US Secretary of State Marco Rubio and the Trump administration’s new envoy to NATO are seeking to reassure wary NATO allies of the US commitment to the alliance.