â€œHe just faded away,â€ his son said.
Mr. Stevenson ran for governor of Illinois twice, losing his 1982 run by just 5,074 votes to Republican Gov. Jim Thompson. It is the closest Illinois election for governor in modern state history.
Mr. Stevenson was the great grandson of former Vice President Adlai Stevenson. His father, Adlai Stevenson II, was a former Illinois governor and two-time presidential candidate.
When running for the Senate, Mr. Stevenson asked then-Chicago Mayor Richard J. Daley for advice.
â€œMy advice to you is donâ€™t change your name,â€ Daley told him, the newspaper reported.