Boris Johnson tells MPs "I take full responsibility for everything that took place on my watch" as he responds to Sue Gray's Partygate report. The prime minister also apologises to security and cleaning staff for their appalling treatment at some events and concludes by saying "I am humbled and I have learned a lesson". Report by Blairm. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn