Trivia: The only two Presidents to sign the Constitution were Washington and who?
John Adams
Thomas Jefferson
James Monroe
James Madison
The correct answer is James Madison
So why is this answer correct? : Of the 39 Founding Fathers to add their signature to the document, only Virginia’s George Washington and James Madison would go on to become President of the United States. During the Constitutional Convention, both John Adams and Thomas Jefferson were performing ambassador duties overseas, in Great Britain and France, respectively.