While the old local elites were content with the status quo, younger veterans of the war had developed a national identity. Led by George Washington and James Madison, Virginia played a major role in the Constitutional Convention of 1787 in Philadelphia. Madison proposed the Virginia Plan, which would give representation in Congress according to total population, including a proportion of slaves. Virginia was the most populous state, and it was allowed to count all of its white residents and 3/5 of the enslaved African Americans for its congressional representation and its electoral vote. (Only white men who owned a certain amount of property could vote.) Ratification was bitterly contested; the pro-Constitution forces prevailed only after promising to add a Bill of Rights. The Virginia Ratifying Convention approved the Constitution by a vote of 89–79 on June 25, 1788, making it the tenth state to enter the Union.