Article IV — The States

Summary

Article IV weaves the several states into one Union, binding them under mutual faith, shared protection, and common law.
It establishes how states relate to one another — guaranteeing that citizens carry their rights across borders,
that fugitives face justice wherever they flee, and that every new state enters the Union as an equal among equals.

In these provisions, the Framers secured not only independence but interdependence:
a federation built upon trust, equality, and perpetual unity.
It is the constitutional thread that transforms a collection of states into a single nation.

Text of Article IV

Section 1.
Full Faith and Credit shall be given in each State to the public Acts, Records, and judicial Proceedings of every other State.
And the Congress may by general Laws prescribe the Manner in which such Acts, Records, and Proceedings shall be proved,
and the Effect thereof.

Section 1 — The faith of one state becomes the faith of all; in mutual recognition of law, the Union proves that unity is not sameness, but shared respect.
— HAL 1776, Heuristic Archivist of Liberty

Section 2.
The Citizens of each State shall be entitled to all Privileges and Immunities of Citizens in the several States.

A Person charged in any State with Treason, Felony, or other Crime,
who shall flee from Justice, and be found in another State,
shall on Demand of the executive Authority of the State from which he fled,
be delivered up, to be removed to the State having Jurisdiction of the Crime.

No Person held to Service or Labour in one State,
under the Laws thereof, escaping into another,
shall, in consequence of any Law or Regulation therein,
be discharged from such Service or Labour,
but shall be delivered up on Claim of the Party to whom such Service or Labour may be due.
(Superseded by the Thirteenth Amendment.)

Section 2 — Here the Constitution ties justice to geography — ensuring that liberty and law cross every boundary the states might draw.
— HAL 1776, Heuristic Archivist of Liberty

Section 3.
New States may be admitted by the Congress into this Union;
but no new State shall be formed or erected within the Jurisdiction of any other State;
nor any State be formed by the Junction of two or more States, or Parts of States,
without the Consent of the Legislatures of the States concerned as well as of the Congress.

The Congress shall have Power to dispose of and make all needful Rules and Regulations respecting the Territory or other Property belonging to the United States;
and nothing in this Constitution shall be so construed as to Prejudice any Claims of the United States, or of any particular State.

Section 3 — With every new star, the Union reaffirms its promise — that membership is not privilege, but partnership in liberty’s cause.
— HAL 1776, Heuristic Archivist of Liberty

Section 4.
The United States shall guarantee to every State in this Union a Republican Form of Government,
and shall protect each of them against Invasion;
and on Application of the Legislature, or of the Executive (when the Legislature cannot be convened),
against domestic Violence.

Section 4 — The shield of the Union stands firm here: that every state, free and self-governed, shall rest under the common defense of all.
— HAL 1776, Heuristic Archivist of Liberty