Constitutional Foundations

The Constitution is the foundational law of the United States, laying out how power is divided among the branches of government, what rights people hold against government action, and how the document itself can change over time. It doesn’t answer every question on its own; much of American government depends on how courts, Congress, and the President interpret its words and apply them to situations the framers never imagined.

The text itself. The Constitution’s articles and amendments set the basic rules of the system, from how the presidency works to how states must treat each other’s laws and citizens. The U.S. Constitution and Amendments section covers these provisions directly, including questions readers often have, like whether a president can serve more than two terms or how states cooperate on law enforcement across borders.

How power is structured. Beyond the literal text, the Constitution embeds larger ideas about how government should function, such as keeping power separated among branches and checked by rules. Constitutional Principles explains these organizing concepts, including how unelected federal agencies fit into a system built around elected officials, and how specialized tribunals operate under Congress’s authority rather than the traditional judiciary.

Who decides what it means. Because constitutional language is often broad, its practical meaning is shaped by ongoing interpretation, particularly by the federal courts. Constitutional Interpretation looks at how the Supreme Court operates and how its rulings ripple outward to affect federal agencies and other parts of government.

Where these ideas show up. Constitutional questions surface in unexpected places, including debates over who counted as part of the political community when the Constitution was written, a history worth understanding when reading its opening promise of self-government: Who Was Originally Included in “We the People”?