Thanksgiving marks 55 years since the assassination of President John F. Kennedy. Too many view his killing as the death of the American dream, writes Peniel Joseph, who says JFK "presided over a transformational era in American politics"

Thanksgiving marks 55 years since the assassination of President John F. Kennedy. Too many view his killing as the death of the American dream, writes Peniel Joseph, who says JFK "presided over a transformational era in American politics" https://t.co/Az1nHR88Mv via @CNNOpinion

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