Richard Nixon
1968 presidential campaign

Johnson's negotiators hoped to reach a truce in Vietnam, or at least a cessation of bombings. On October 22, 1968, candidate Nixon received information that Johnson was preparing a so-called " October surprise ", abandoning three non-negotiable conditions for a bombing halt, to help elect Humphrey in the last days of the campaign. Whether the Nixon campaign interfered with negotiations between the Johnson administration and the South Vietnamese by engaging Anna Chennault, a fundraiser for the Republican party, remains a controversy. It is not clear whether the government of South Vietnam needed encouragement to opt out of a peace process they considered disadvantageous.
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