Conversation so far:
When did David Cameron become special adviser to the chancellor?
David Cameron became special adviser to the chancellor in 1992.
Who was the chancellor David Cameron became special advisor to?
David Cameron became special advisor to Norman Lamont
How long was David Cameron special adviser for Norman Lamont?
David Cameron was special adviser for Norman Lamont from 1992 to 1994
Why was Norman Lamont fired from the chancellor position?
Norman Lamont fell out with John Major after Black Wednesday and became highly unpopular with the public.
Did David Cameron and Norman Lamont get along?
What did you find most interesting in the David Cameron article?
it was speculated that the heavy Conservative defeat in Newbury may have cost David Cameron his chance of becoming Chancellor himself

Question: When was the defeat in Newbury?
Self-contained rewrite: When was David Cameron's heavy Conservative defeat in Newbury?