I have today informed the chief whip that I am standing down as the MP for Mid Bedfordshire, with immediate effect.
It has been an honour to serve as the MP for such a wonderful constituency but it is now time for another to take the reins.
NEW: Rayner responds to Raab's jibe at her for going to the opera
"My advice to the deputy prime minister is to cut out the snobbery & brush up on his opera. The Marriage of Figaro is the story of a working-class woman who gets the better of a privileged but dim-witted villain."