Mexican President Claudia Sheinbaum on Wednesday mocked President-elect Donald Trump’s proposal to rename the Gulf of Mexico the “Gulf of America.” Sheinbaum was speaking to reporters at her daily news conference in front of a large map from 1607 that labeled much of the North American continent “América Mexicana,” or “Mexican America.”

President Claudia Sheinbaum: “The United Nations recognizes the name Gulf of Mexico. But next, why don’t we call it Mexican America? It sounds nice, doesn’t it? Since 1607, the Constitution of Apatzingán was Mexican America. So let’s call it Mexican America. It sounds nice, doesn’t it? Gulf of Mexico since 1607, and it is also internationally recognized.”

European leaders have reacted with alarm to Donald Trump’s proposal to seize control of the Panama Canal and Greenland, and vowed to defend the national sovereignty of European nations. On Wednesday, Denmark’s foreign minister said Greenland may become independent if its residents decide to, but it will not become part of the U.S. He made the remarks as Donald Trump Jr. visited Nuuk, Greenland, where at a news conference he promised residents, “We’re going to treat you well.”