James Madison (March 16, 1751 – June 28, 1836) was an American statesman, diplomat, and Founding Father who served as the 4th president of the United States from 1809 to 1817. He is hailed as the "Father of the Constitution" for his pivotal role in drafting and promoting the Constitution of the United States and the Bill of Rights. Disillusioned by the weak national government established by the Articles of Confederation, he helped organize the Constitutional Convention, which produced a new constitution. Madison's Virginia Plan served as the basis for the Constitutional Convention's deliberations, and he was one of the most influential individuals at the convention. He became one of the leaders in the movement to ratify the Constitution, and he joined with Alexander Hamilton and John Jay