The top diplomat in President Donald Trump's administration, Marco Rubio, began his first foreign visit on Sunday, meeting Panamanian President Jose Raul Mulino to discuss U.S. concerns about Chinese companies potentially affecting American shipping access around the Panama Canal and regional migration issues.

Secretary of State Marco Rubio embarks soon on his inaugural trip as the United States’ top diplomat. His first stop, Panama could prove to be the most contentious on the itinerary.

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.