The MP for Maidenhead was once Theresa May.
Maidenhead (UK Parliament constituency) . It has been represented since its 1997 creation by Theresa May , who became Prime Minister on 13 July 2016 . Theresa May . She has been the Member of Parliament ( MP ) for Maidenhead since 1997 and Leader of the Conservative Party since July 2016 . After unsuccessful attempts to be elected to the House of Commons in 1992 and 1994 , she was elected as the MP for Maidenhead in the 1997 general election .