So what happened to him? How did he become ultraüberliberal? Maybe it was his love for the Kennedys. Maybe it was Hollywood and fame. IMDB mentions that his mother had "IRA connections," but you can find almost anything on the Internet.
IMDB also gives this quote from him: "I consider myself a liberal Democrat, but I'm against abortion." And this fact: "In 2004, he was listed as an endorser of March for Women's Lives. After learning about this, Feminists for Life, an organization that named him as a "Remarkable Pro-Life Man" in 2001, brought this to his attention, informing him that March for Women's Lives was a pro-choice group. At his request, March for Women's Lives removed his name from their list."
He was a Clown of Freedom in one of those Insight programs. A revolutionary named "Estavez" (IIRC) in some Latin American country with a dictator.