Final answer:
Executive orders are directives issued by the President to implement legislation. They are not permanent and can be overturned by subsequent presidents or court rulings.
Step-by-step explanation:
Executive orders are directives issued by the President of the United States to administrators in the executive branch on how to implement legislation. They can be used in various situations, such as reorganizing the executive branch, imposing restrictions or directives on bureaucrats, or addressing urgent matters. The frequency of executive order usage varies depending on the president and the circumstances. While some presidents have used them sparingly, others have made more frequent use of executive orders.
Once issued, executive orders are not permanent and can be overturned by subsequent presidents or subject to court rulings. The durability of an executive order depends on several factors, including whether it has prior authority from Congress to legitimize it. If there is no prior authority, it is more likely to be overturned.