Answer:
The failure of the United States to enter a "Golden Age" after Johnson's 1964 victory and the passage of the Civil Rights Act was the Vietnam War.
Explanation:
The war in Vietnam was the longest in American history. It was an experience of failure and frustration for the country, constituting, without a doubt, the most serious failure of the United States in the Cold War.
There was a curious discrepancy in the external environment, where this war was a huge defeat for the country, and the internal environment, where the passage of the Civil Rights Act implied a social progress never seen before in the history of the United States.
When consulting a journal entry like this, it is <span>important to know which side the writer supported in the conflict because this can help determine any potential "bias" the writer may have had, which makes the source more usable and "in context". </span>
Nixon appointed Henry Kissinger as special assistant for National Security Affairs and gave him the authority to use diplomacy to end the conflict.
