Trump said he planned to “restore the name of a great president, William McKinley, to Mount McKinley, where it should be and where it belongs."

The pledge to rename Denali was opposed by environmental groups and Alaskan politicians, including Republican U.S. Sen. Lisa Murkowski.

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.

The move is likely to face some pushback in Alaska, where the Alaska Native name has long been favored for the continent’s tallest mountain.