The fact that the constitution is the supreme law of the land illustrates which aspect of our government?

i bet its national

The correct answer to the following question will be "National supremacy".

Explanation:

A term used only to characterize the United States Constitution's power over laws put in place by nations that might be at variance with either the ideals maintained by the fathers of the republic once they established the transitional government, is National supremacy. Article VI of that same Constitution provides for American sovereignty, which ensures that state statutes could not prevail over or refute Congressional legislation or US Supreme court decisions.

Therefore, National supremacy is the right answer.