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

U.S. Secretary of State Marco Rubio comments ahead of NATO meeting

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