Conversation so far:
Does Robert Novak lean more left or right politically?
Robert Novak was registered Democrat, despite his conservative political views.
Did Robert Novak have an opinion on the Iraqi war?
Did Robert Novak express his views through print or television?
Robert Novak served as a notable voice for American conservatism in his writings and in his television appearances while taking differing views on issues such as Israel–United States relations.
Did Robert Novak have well known opinions about health care?

Question: What was his most controversial political view?
Self-contained rewrite: What was Robert Novak's most controversial political view?