
President-elect Donald Trump has said the United States would change the name of the Gulf of Mexico to the Gulf of the Americas, linking the proposal to his long-standing resentment over Mexico's handling of immigration, drug trafficking and trade.
"We will change the name of the Gulf of Mexico to the Gulf of America," Trump said at a press conference at the Mar-a-Lago Club in Palm Beach, Florida.
"… What a beautiful name and it's fitting."
The president-elect then criticized the Mexican government for allowing migrants to "pour" into the United States, saying that Mexico "could stop them and we will impose very serious tariffs on Mexico and Canada, because they also come through Canada."
Trump did not provide further details on how he would implement the name change, but the comments immediately raised questions about whether a president has the authority to rename it and prompted at least one Republican member of Congress to draft legislation on the issue.
What is the Gulf of Mexico and where is it located?
The Gulf of Mexico is a 218,000-square-mile ocean basin connected to the Caribbean Sea and the Atlantic Ocean through the Strait of Florida and the Yucatan Channel.
It extends from the east coast of Mexico and the southeastern coast of the United States to the western tip of Cuba.

Why is it called the Gulf of Mexico and who named it?
This body of water has been known by many names, but European explorers and cartographers have used the name "Gulf of Mexico" for at least 400 years.
How could the Gulf of Mexico be renamed?
There are mechanisms to rename places recognized by the federal government.
However, if the name change becomes official in the US, that doesn't mean other countries will recognize it.
The U.S. Board on Geographic Names (BGN) is a federal interagency organization responsible for maintaining the uniform use of geographic names in the federal government.
Is there a precedent for officially renaming a bay?
In 2020, the Committee on Foreign Names within the BGN considered whether to rename the Persian Gulf to the Arabian Gulf, a sensitive debate among Arab nations.
The committee decided that “Persian Gulf” was still the appropriate name based on its policies on the use of conventional and widely spread names.
Is there precedent for a president to rename a country?
President Barack Obama approved the official renaming of Mount McKinley — the highest peak in the U.S. — to Denali, the traditional Native name, in 2015.
Trump has promised to reverse this name change.