Conversation so far:
When did David Davis (British politician) get started in politics?
Davis was first elected to Parliament in the 1987 general election as the MP for Boothferry which, in 1997, became the constituency of Haltemprice and Howden.
Was he popular in this position?
He was a government whip when parliament voted on the Maastricht Treaty in 1992, angering many of the Maastricht Rebels on his own right-wing of the party.
Was there any retaliation?
CANNOTANSWER.
What was notable about his political career?
Parliamentary Control of the Executive Bill to the House of Commons, in which he proposed to transfer ministerial exercise of the Royal Prerogative to the Commons in the following areas.
Which areas were these?
the signing of treaties, the diplomatic recognition of foreign governments; European Union legislation.

Question: What were the most important issues to him?
Self-contained rewrite: What were the most important issues to David Davis?