Abbot Howard Hoffman (November 30, 1936 – April 12, 1989) was an American political and social activist who co-founded the Youth International Party ("Yippies") and was a member of the Chicago Seven.

EXCLUSIVE: It’s been more than 40 years, but filmmaker Robert Greenwald remembers the call that came in from a man on the run. The caller, one of America’s most famous fugitives, used an assumed name.

It wasn’t Abbie Hoffman’s finest moment. But it was one of them. It was a critical moment in 1987 when he and the daughter of a president protested against the presence of the CIA and CIA recruitment ...