Mexico's president sarcastically said that the U.S. should be called "Mexican America" after Trump's vow to rename the Gulf of Mexico the "Gulf of America."

The Mexican president responded to President-elect Trump's contention that the sea should have a more U.S.-centric designation by showing a map from 1607 during a Wednesday press conference. The map, which predates the founding of the United States by more than 150 years, labels all of North America as "América Mexicana” (“Mexican America”).

Mexican President Claudia Sheinbaum dove into President-elect Trump’s chatter of geopolitical rearrangement Wednesday, proposing a name change for North America in response to Trump’s musings

Claudia Sheinbaum gave a sarcastic history lesson to the president-elect, while Canada has also hit back at comments about it becoming the 51st US state.

The President of Mexico, Claudia Sheinbaum, wasted no time trolling President-elect Donald Trump, posting a vintage map showing that a large portion of what is now the United States of America used to be called “Mexican America.

Claudia Sheinbaum's suggestion came in response to Trump's proposal to rename the Gulf of Mexico as the "Gulf of America."

U.S. President-elect Donald Trump wants to rename the Gulf of Mexico the “Gulf of America.” Mexico’s president, Claudia Sheinbaum, came up with her own proposal. CNN’s Becky Anderson explains.

Mexican President Claudia Sheinbaum turned the tables on U.S. President-elect Donald Trump’s talk about renaming the Gulf of Mexico as the “Gulf of America.” In what appeared to be a deadpan joke, Sheinbaum suggested the United States be known as “Mexican America” during a press briefing on Wednesday.