The Constitution of the United States · Art. IV, § 4, cl. 1

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.

United States · 1787 and amendments I–XXVII
National Archives transcriptions of the 1787 parchment and amendments I–XXVII; original wording, including superseded provisions.
Passage preview. Read in context for the complete text, notes and references.