Who is commonly recognized as the principal author of the U.S. Constitution?

The principal author of the U.S. Constitution is James Madison. He played a pivotal role in the drafting and promoting of the Constitution during the Constitutional Convention of 1787. Madison's extensive notes from the convention provide invaluable insight into the debates and discussions that shaped the final document. He is often referred to as the "Father of the Constitution" due to his influential contributions, which included addressing key issues such as federalism and the separation of powers. Madison also authored a series of essays known as The Federalist Papers, in collaboration with Alexander Hamilton and John Jay, to support the ratification of the Constitution. His commitment to a structured government that balanced national and state powers reflects the foundational principles embedded in the Constitution, solidifying his legacy in American political history.