“a republic,” but only “if you can keep it.” The source of this quotation is a journal kept by James McHenry (1753-1816) while he was a Maryland delegate to the Constitutional Convention. On the page where McHenry records the events of the last day of the convention, September 18, 1787, he wrote: “A lady asked Dr. Franklin Well Doctor what have we got a republic or a monarchy – A republic replied the Doctor if you can keep it.” Then McHenry added: “The Lady here alluded to was Mrs. Powel of Philada.” The journal is at the Manuscript Division of the Library of Congress.
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