
Given the following passage

"NARA also maintains the Presidential Library system, a nationwide network of libraries for preserving and making available the documents of U.S. presidents since Herbert Hoover. The Presidential Libraries include:",

answer the following question. Note that the answer is present within the text.

Question: Hoping for future generations to explore the history of our forefathers, the Presidential Library seeks this among all other priorities 

preserving and making available the documents
