The Lyndon B. Johnson Library and Museum is about to unveil a complete set of the Pentagon Papers.
The Monday release will be the first official release of the once-top secret, 7,000-page Pentagon study of the Vietnam War.
It comes exactly 40 years after The New York Times published the leaked document.
The Austin American-Statesman reports the release also comes 38 years after Johnson himself planned to ask his presidential successor, Richard Nixon, to release them to the public.
Johnson died 10 days later.
Former Johnson aide and past LBJ Library director Harry Middleton says Johnson's response to tomorrow's release would have been, "What the hell took so long?"