I don’t know what you think the word “liberal” means. Obamacare is an abomination foisted on the American people by a coalition of right-wing Republicans(*) and weak-willed right-of-center Democrats. Liberals who went along are rosy-eyed optimists.
(* - Yes I know the right-wingers voted against Obamacare, but only after defecating on and destroying its liberal character. Win-win for them: They get healthcare designed to enrich their health-business patrons, while being able to point fingers of blame when the problems they designed into it become more apparent.)