What source was instrumental in supporting the Constitution during the ratification debate?

The Federalist Papers were instrumental in supporting the Constitution during the ratification debate. Authored by Alexander Hamilton, James Madison, and John Jay, these essays were published to explain and defend the principles of the Constitution, addressing concerns and counterarguments from its opponents. They aimed to persuade the public and state legislatures of the merits of a stronger federal government. The papers played a crucial role in shaping the political discourse and ultimately contributed to the Constitution's ratification.