Joe Kennedy III is the grandnephew of assassinated president John F Kennedy (AFP)
Joe Kennedy III, the grandnephew of assassinated president John F Kennedy, conceded defeat in his bid for a seat in the US Senate Tuesday, a major blow for the legendary American political dynasty.
The 39-year-old Kennedy said he had called his opponent, Massachusetts Senator Ed Markey, 74, "to congratulate him and to pledge my support to him and his campaign in the months ahead."
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