"Yet from the start, the [Nixon] library had trouble being taken seriously. Its first director, Hugh Hewitt, announced that researchers deemed unfriendly would be banned from the archives, singling out the Washington Post's Bob Woodward as a candidate for exclusion. Scholars cried foul; Hewitt revoked the plan."
From the LA Times, 7/8/07.
Hewitt is now an esteemed "conservative" commentator.