I recently heard someone on the news use the phrase Liberal-Ideologue. It sounded strange. Look at the definitions:
Ideologue (n); a person who zealously advocates the body of doctrine, belief, or dogma, etc. that guides an individual, a movement, or a large group.
Liberal (n); a person (or group) who is open-minded or tolerant especially free of, or not bound, by traditional or conventional ideas, values, or ideology, etc.
Obviously, the phrase Liberal-Ideologue is an oxymoron. By definition they are contradictory terms.