“It is not up to us to direct history and tell people what to think, but we do want them to know what he did and how it impacts your life. What you think about that is up to you," he said.

Presidential libraries provide access to documents for historical research. Updegrove says this reflects the openness of a democratic society. “Those records belong to the people, they do not belong to that president," he said.

A short drive from Austin is another presidential library, that of George W's father, George Herbert Walker Bush.

Like several other presidential libraries, this one has a small-scale oval office. Director Warren Finch says it draws visitors.

“We feel that is one of our key missions in our museums and educational programs is to talk about civics, how the US constitution works, how the government works in practice," he said.

Modern technology provides libraries with a treasure trove of images and audio recordings, but Finch says managing all that material is a challenge.

“There is... about a million photographs, ten thousand cassettes of video tape," he said.

For presidential libraries, preserving and managing materials of historic importance is a continuing enterprise, made difficult by the sheer size of the collections they keep.