Based on the case law, we know that: Question 20 options: The U.S. Constitution's age, residency, and citizenship requirements for members of Congress cannot be added to or deleted. Only a constitutional amendment can alter requirements for membership in the federal legislature. Congressional authority under the U.S. Constitution has been changed many times, most recently when Congress enacted a statute providing for term limits for members of Congress. Congress has an absolute right to add requirements to the duties of members of Congress listed in the U.S. Constitution. Members of Congress must be natural-born citizens