Mexico and Donald Trump have a history and his views have clashed with Mexico over several issues, including border security and the imposition of tariffs on imported goods. He had earlier sworn to build a wall along the U.

US President-elect Donald Trump's proposal to call the Gulf of Mexico the 'Gulf of America' was dryly countered by Mexican leader Claudia Sheinbaum. View on euronews

As is often the case with Trump, it’s unclear whether his remarks are to be taken at face value or if he's simply trying to stir the pot.