The U.S. secretary of state is expected to focus on mass migration and the Panama Canal as he heads to Central America on his first overseas trip.

US Secretary of State Marco Rubio arrives in Panama on Saturday for his first trip as the United States’ top diplomat that will test if his diplomacy can build on President Donald Trump’s bellicose and transactional approach to “American First” foreign policy,

Secretary of State Marco Rubio embarks this weekend on his first foreign trip in office. He's heading to Central America to press President Donald Trump’s top priority — curbing illegal immigration — and bring the message that the U.