Does the Presidential Records Act mean there are none? Or that there are and staff knows which to shred and which to save? Some of them are official documents, you're not allowed, you'd break the law.
“Life, liberty, and property do not exist because men have made laws. On the contrary, it was the fact that life, liberty, and property existed beforehand that caused men to make laws in the first place.” (The Law, p.6) Frederic Bastiat