Final answer:
The Rule of Law is the principle that ensures no citizen is above the law and emphasizes accountability for both government officials and private citizens under the law.
Step-by-step explanation:
The principle that no citizen is exempt from following the law is defined as the Rule of Law. This democratic ideal upholds that all individuals and entities are accountable under the law, ensuring equality and fairness within society. The Constitution of the United States, being the highest law of the land, explicitly states that there are no special exceptions for anyone. It ensures that all political decisions are based on known principles, thus maintaining unity and protecting civil liberties among a diverse population with varying beliefs and backgrounds. Both government officials and private citizens are subject to the same legal rules and procedures, reinforcing the concept that no single person is above the law.