What did Thomas Jefferson send to James Madison before the constitutionnal convention?

Before the Constitutional Convention, Thomas Jefferson sent James Madison a letter outlining his views on the need for a stronger central government and his concerns about the Articles of Confederation. Jefferson emphasized the importance of addressing issues related to commerce, national defense, and the potential for factionalism. He encouraged Madison to consider the necessity of a new framework to ensure the stability and prosperity of the nation. This correspondence helped shape Madison's approach to the Convention and the drafting of the Constitution.