WASHINGTON ( CNN ) -- The Richard Nixon Presidential Library will allow access Tuesday to about 154 hours of Nixon White House tape recordings and 30,000 pages of documents that were formerly classified . President Nixon announces the U.S. incursion into Cambodia during the Vietnam War in April 1970 . Among the tapes and documents are conversations about the Vietnam War , Nixon 's second inauguration , the U.S. Supreme Court 's Roe v. Wade decision in 1973 and the first Watergate trial , according to a library statement . Tuesday 's release is the 13th opening of Nixon White House tapes since 1980 , the statement said . The new Nixon tapes and documents will be available on the Internet and in the Richard Nixon libraries in College Park , Maryland , and Yorba Linda , California . Nixon resigned August 9 , 1974 , over the Watergate scandal -- the first president to resign from office . President Ford pardoned Nixon the following month , saying it was necessary for the nation to heal after Watergate .
Richard Nixon Presidential Library to open access to 154 hours of recordings . Tapes include conversations about Watergate , Roe v. Wade , Vietnam War . Release also includes 30,000 pages of formerly classified documents .