Conversation so far:
What was the relation between Duncan Hunter and initial election and re-election?
In 1980, Duncan Hunter was recruited to run for Congress in what was then the 42nd District against 18-year incumbent Democrat Lionel Van Deerlin.
Did Duncan Hunter win the election against Lionel Vandeerlin in 1980 for the 42nd District?
Duncan Hunter narrowly defeated Lionel Van Deerlin.

Question: Who was his opponent?
Self-contained rewrite: Who was Duncan Hunter's opponent?