The first ten amendments, commonly called the "Bill of Rights", were written before the Constitution was signed in the Continetal Congress. In fact the signing of the Constitution hinged on the inclusion of the Bill of Rights. However I don't remember if Mr. Washington was elected before or after the Constitution was signed and accepted but I believe the election was held after. So in answer to your question There was no president at the time the fifth amendment was written. President Richard Nixon...Washington was wayyyy before SALT.