Feeralist No. 10 (Federalist Number 10) is an essay by James Madison and the tenth of the Federalist Papers, a series arguing for the ratification of the United States Constitution. It was published on November 22, 1787, under the pseudonym Publius, the name under which all the Federalist Papers were published. The essay is the most famous of the Federalist Papers, along with Federalist No. 51, also by James Madison, and is among the most highly regarded of all American political writings.