The news broke shortly before he was sworn in Monday morning, and Trump confirmed it during his inaugural address. The order will rename the Gulf of Mexico to the Gulf of America, and Mount Denali to Mount McKinley, which was the official name recognized by the federal government from 1917 until 2015.

Originally known as Mount McKinley, named after the 19th-century Republican president, it was renamed Denali in 2015 to honor Alaska’s indigenous people

On President Donald Trump's Inauguration Day, Governor Ron DeSantis made Florida the first state to reference the "Gulf of America" in an executive order when he issued a state of emergency due to cold weather.

The president issued an executive order to change the name of the body of water, but its power may be limited beyond the United States.

Among the first executive orders signed by President Donald Trump was an order to rename the Gulf of Mexico to the newly named "Gulf of America." "President Trump is bringing common sense to government and renewing the pillars of American civilization," the newly inaugurated president's executive order said.

Mexican president says President Trump can call the gulf whatever he wants but that the world will still call it the Gulf of Mexico.

The executive order will direct the secretary of the interior to change the name to "Gulf of America” for use on official maps and throughout the federal government, according to the New York Post, which first reported the news. Trump has nominated Republican North Dakota Gov. Doug Burgum to the Department of Interior.

As president, Trump can take the action to rename the body of water, although other countries don’t have to adopt the new name.

The tallest peak in North America has been named Denali since 2015 when its name was officially changed under former President Barack Obama.

President-elect Donald Trump says he plans to rename the Gulf of Mexico to the Gulf of America, because "it's ours." Who owns the Gulf?

Get live updates on winter storms hitting the southern and eastern parts of the U.S. today. Follow the latest weather news as the Gulf Coast faces unusual cold and snow.