What is the supreme law of the land?

The supreme law of the land is the Constitution. This foundational document establishes the framework for the government of the United States, delineates the powers and responsibilities of different government branches, and sets forth the rights of the citizens. The Constitution is the highest form of law and supersedes any state or local laws that may be in conflict with it.

The Declaration of Independence, while a significant historical document that outlines the reasons for the American colonies' break from British rule, does not have the legal standing of a law that governs the nation. The Bill of Rights comprises the first ten amendments to the Constitution and provides specific protections for individual liberties but is not itself a governing document. The Articles of Confederation served as the first constitution for the United States but were replaced by the current Constitution due to their inadequacies in creating a functional national government. Therefore, the Constitution is the recognized authority that unifies and regulates all laws in the country.