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.

President Claudia Sheinbaum proposed using the 17th-century name in response to President-elect Donald Trump's comment he'd try to change the name of the Gulf of Mexico.

Trump has butted heads with Sheinbaum, a leftist scientist who became Mexico’s first female president in October, since he won re-election. The beef began over Trump’s pitch to slap 25 percent tariffs on Mexican imports—a measure that Sheinbaum has pledged to match if Trump actually implements such a measure.