April 5, 2012: As part of the Pat Nixon Centennial year, daughter Julie Nixon Eisenhower and Presidential aides discuss Mrs. Nixon’s work as the nation’s Ambassador of Goodwill. Nixon administration veterans included Col. Jack Brennan, former Marine Corps Aide to the President and post-presidential chief-of-staff; William Codus, former Staff Assistant to the President and State Department Assistant Chief of Protocol; and Gen. Don Hughes, Military Assistant to President and Vice President Nixon.