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.

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,

President José Mulino said Panama's sovereignty over the world's second busiest waterway is not up for discussion.