This established a goverment that shared power between the national government and state goverments, protected the rights of states, and provided a system for orderly change through amendments to the Constitution itself.
This was the supreme law of the land when constitutional, but otherwise gave the states considerable leeway to govern themselves.
This was balanced between large and small states by creating a Senate and a House of Representatives.
Placated the Southern states by counting slaves as three-fifths of the population when determining representation in the House of Representatives
President of the Convention, he presided at the Convention and, although seldom participating in the debates, lent his enormous prestige to the proceedings.
"Father of the Constitution", Virginian and brillian political philosopher, often led the debate and dept copious notes of the proceedings, he authored the "Virginia Plan" and later authored much of the Billl of Rights.
The best record historians have of what transpired at the Constitutional Convention.