Donald Trump used an executive order on Monday to rename two American landmarks. In one of his first acts as president, Donald Trump used an executive order on Monday to rename the Gulf of Mexico and Denali in Alaska.

During his inaugural address, President Donald Trump said he will rename the Gulf of Mexico to the “Gulf of America,” something that he has mentioned previously. “America will reclaim its rightful place as the greatest,

The Alaskan mountain, now known as Mount Denali, will revert back to its previous name Mount McKinley, which was changed by former President Barack Obama. Obama changed the name to Denali in 2015 to reflect the traditions of Alaska Natives as well as the preference of many Alaska residents.

Trump, who took office for a second time Monday, said he planned to “restore the name of a great president, William McKinley, to Mount McKinley, where it should be and where it belongs.

President Donald Trump has issued a flurry of executive orders — including one to change the official name of North America's tallest mountain.

Trump's decision is being met with resistance, as many Alaska lawmakers, including its two Republican Senators, have voiced opposition to the change.