Answer:
The credibility gap in the 1960s and 1970s was a distrust of the Lyndon B. Johnson administration's statements and policies on the Vietnam War.
Step-by-step explanation:
The term "credibility gap" was used to describe the difference between what the government was saying and what the public actually believed.
Public statements that the President and his administration offered about the Vietnam War were lacking information. They focused on anti-communism and humanitarianism but did not inform on other things that were going on.