The controversial former Vote Leave campaign director has quit as the PM's top adviser.
Read moreLeave campaigns spending investigations
Video content
Video caption: PMQs: Peter Bone calls for abolition of Electoral Commission A Conservative MP attacks the Electoral Commission for its handling of claims about some involved in the Vote Leave campaign.
Video content
Video caption: Conservative Steve Baker responds to Vote Leave spending questions Conservative MP and former Brexit minister Steve Baker responds to questions over Vote Leave spending during the referendum campaign
By John Sweeney
BBC Newsnight