President-elect Donald Trump is decrying rising shipping fees Panama has imposed to use the Panama Canal. He’s even threatened to have the U.S. take

It prompts a sharp rebuke from Panama's president, who says "every square metre" of the canal belongs to his country.

Former White House chief of staff Mick Mulvaney said on Monday that President-elect Trump’s recent provocations about the U.S. possibly retaking control of the Panama Canal are part of a negotiating tactic to get the rates down.