Despite his resolute public attitude toward the war, documents detailed in the new book "The Last of the President's Men" reveal that President Richard Nixon had his doubts about America's efforts in the Vietnam war. David Martin has more.
Source: https://www.youtube.com/watch?v=1UeUHKt6W2U
From 1971-73, Richard Nixon secretly recorded his private conversations in the White House. When the existence of the tapes was exposed during the Watergate scandal, Nixon refused to allow their release, explaining they contained "blunt and candid remarks on many different subjects" that could sully the presidency forever. Only certain conversations pertaining to Watergate ended up being heard at the time, but after Nixon's death in 1994, the government began releasing the tapes. In 2010, hundreds more hours of recordings were released by the Nixon Library.
Source: Kanopy