Art. IV, § 4
Republican government and protection of States
Duty
States & Federalism
Art. IV · The States
Official text rightpowerlimitif conditionlegal term
The United States shall guarantee to every State in this Union a , 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.
Simplified explanation
The United States shall guarantee every State a Republican Form of Government and protect each against Invasion, and, on Application of the State Legislature or Executive, against domestic Violence.