President Donald Trump announced Saturday morning that Ryan Zinke—who, as Interior Secretary, oversees nearly one-fifth of all land in the United States—will leave his post at the end of the year. Trump said he will nominate a new secretary in the next week, though Zinke will be likely be replaced in an acting capacity by David Bernhardt, the current deputy secretary. Secretary of the Interior @RyanZinke will be leaving the Administration at the end of the year after having served for a period of almost two years.