Being black did not make him successful. Being a scholar of the US constitution did not make him successful. Being the author of health care legislation, appointing female Supreme Court justices and standing up for the rights of LGBTQ people did not make him successful.
These were all accomplishments to be thankful for but were part of the job for a man whose devotion to his constituents and country was beyond measure.
His successes are due to a life-mate who shined when she looked at you; to a way with words that caused both intellect and emotion to stand on end; to a stable and loving personality; to a cooperative style that belied scorn and impatience; to a sense of humor and of compassion; to a stage presence that might have earned a Tony; to fairness that transcended gender, age and credentials.