This country has a long, and revered history of anonymous political commentary, beginning with Thomas Paine, the author of the widely read pamphlet, Common Sense (1776), which advocated for America’s independence from Great Britain, and The American Crisis (1776–1783), a pro-revolutionary pamphlet series.
Our founding fathers also utilized the ability to anonymously make political commentary in the creation of our country. The greatest example of this is The Federalist Papers.
The Federalist Papers are comprised of 85 articles advocating the ratification of the U.S. Constitution, and were originally published between October 1787 and August 1788. They were written by Alexander Hamilton, James Madison, and John Jay, using the pseudonym "Publius," in order to preserve anonymity and to ensure that the ideas were considered on their own merit, separate from the authors of the ideas. These papers are still today a primary source for interpretation of the Constitution, being that they outline both the philosophy and the motivation for the system of government being proposed.