What document serves as the supreme law of the land in the United States?

The Constitution serves as the supreme law of the land in the United States, establishing the framework for the federal government and serving as the highest legal authority in the nation. It outlines the structure of government, delineates powers among the various branches, and guarantees individual rights. This foundational document was ratified in 1788 and has since been the basis for all laws enacted in the country, ensuring that no law or government action can supersede it.

The Articles of Confederation, while an important historical document, was replaced by the Constitution due to its weaknesses in creating an effective national government. The Bill of Rights comprises the first ten amendments to the Constitution and guarantees specific individual liberties but does not hold the status of the overarching legal framework. Supreme Court rulings interpret the Constitution and establish legal precedents, but they do not constitute the law themselves; rather, they function within the context established by the Constitution. Thus, the Constitution remains the ultimate legal authority in the United States.