Rule of law vs rule of man?

(in the US) the question would make no sense. We DO operate under the rule of law. Only dictatorships and absolute monarchies operate under the rule of authoritarianism.

Constitutional

Basic principle that government and those who govern are bound by the fundamental law.

what is the rule of law? every one must follow the rule, leaders must obey the law, government must obey the law,no one is above the law?. The principle in which the law applies to government...

Yes