Name one of the writers who supported the passage of the US Constitution.

James Madison is often referred to as the "Father of the Constitution" due to his pivotal role in the drafting and promoting of the document. He was a key figure at the Constitutional Convention in 1787 and was instrumental in the debates surrounding its ratification. Madison's contributions included advocating for a strong federal government and devising a system of checks and balances within the government structure, which are essential features of the Constitution.

He also played a significant role in writing the Federalist Papers, which were a series of essays aimed at encouraging the ratification of the Constitution by explaining its benefits and addressing concerns about the new government's power. Madison's efforts were crucial in the successful adoption of the Constitution, making him a primary supporter of its passage. Other figures like Thomas Jefferson were influential in American politics, but he was not directly involved in the Constitution's drafting. Benjamin Franklin was supportive of it but did not take a lead role, and John Hancock is better known for his prominent signature on the Declaration of Independence rather than his involvement in the Constitution.