Question: What British political party has held the Parliament seat for Maidstone and the Weald since at least 1997?
Sentence (from "Ann Widdecombe"): She is a Privy Councillor and was the Member of Parliament for Maidstone from 1987 to 1997 and for Maidstone and The Weald from 1997 to 2010.
Relevant evidence: Yes