James Madison - as "Publius" - wrote "The Federalist No. 10." In this famous essay, Madison addresses the concerns of "majority" versus "minority" rule and examines, in close detail, the potential harm of special interests.
The document, pictured above, was published in the New York Daily Advertiser on November 22, 1787. Click on the image for a better view.
This is the text of Federalist 10 (broken into paragraphs for easier reading).
Image online, courtesy National Archives.