Conversation so far:
Tell me about the political background?
Lessig has been politically liberal since studying philosophy at Cambridge in the mid-1980s.
Has he been an activist for anything?
Lessig came out in favor of then Democratic primary candidate Barack Obama, citing the transformative nature of the Obama campaign as one of his chief reasons.

Question: What else does he stand for?
Self-contained rewrite: What else did Lawrence Lessig stand for other than Barack Obama ?