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The 1960s was a decade of hope, change, and war that witnessed an important shift in American culture. Citizens from all walks of life sought to expand the meaning of the American promise. Their efforts helped unravel the national consensus and laid bare a far more fragmented society. As a result, men and women from all ethnic groups attempted to reform American society to make it more equitable. The United States also began to take unprecedented steps to exert what it believed to be a positive influence on the world. At the same time, the country’s role in Vietnam revealed the limits of military power and the contradictions of U.S. foreign policy. The posthumous portrait of John F. Kennedy captures this mix of the era’s promise and defeat. His election encouraged many to work for a better future, not just for the middle class but for the marginalized as well. Kennedy’s running mate, Lyndon B. Johnson, also envisioned a country characterized by the social and economic freedoms established during the New Deal years. Kennedy’s assassination in 1963, and the assassinations five years later of Martin Luther King, Jr. and Robert F. Kennedy, made it dramatically clear that not all Americans shared this vision of a more inclusive democracy.