Who provided the most input in writing the US Constitution?
It is widely believed that Thomas Jefferson contributed the
original work. It also believed that his secretary was charged with
the actual drafting of the final copy. Thomas Jeffersons
contribution to the Constitution got him elected as the second
President of our country. The above answer is wrong. Thomas
Jefferson was not at the Constitutional Convention. He was the
writer of the Declaration. He also was the 3rd president of the US,
and because of several things happening all at once.