Living under the rule of law means that regular citizens as well as official leaders must abide by and uphold the laws.
The rule of the law is a principle in which all people, institutions and the government are equally accountable under the law regardless of economic status, race, genre, age, beliefs. It aims to guarantee a just government and protect people's fundamental rights.
In the U.S., it was first established by the Founding Fathers of America after the American Revolution; they believed that the rule of law was a fundamental principle of a free and just government.