Conversation so far:
What were Joe Lieberman's political positions?
On domestic issues, he strongly supports free trade economics while reliably voting for pro-trade union legislation.
What issues are important to him?
Lieberman is a supporter of abortion rights and of the rights of gays and lesbians to adopt children, to be protected with hatecrime legislation, and to serve openly.
What else does he support?
Lieberman was one of the Senate's leading opponents of violence in video games and on television.

Question: Does he support any more causes?
Self-contained rewrite: Does Joe Lieberman support any more causes?