The last time an incumbent president withdrew from a reelection campaign was 1968. On March 31, under immense stress from the failure of his Vietnam War policy, President Lyndon Johnson told a national TV audience that he would neither seek nor accept the nomination of the Democratic Party for another four years in the White House. Vice President Hubert Humphrey would win the nomination, as all hell broke loose on the Chicago streets outside the convention, during one of the most turbulent years in U.S. political history. By late October, as Humphrey gained ground in the polls against Republican Richard Nixon, LBJ learned that a woman by the name of Anna Chennault was interfering in his 11th hour bid to initiate peace talks with the North Vietnamese government in Paris. The person who orchestrated this dirty trick was Nixon himself. In this episode, University of Virginia historian and researcher Ken Hughes tells the story of the Chennault Affair.
Recommended reading:
"Chasing Shadows: The Nixon Tapes, the Chennault Affair, and the Origins of Watergate" by Ken Hughes