Boris Johnson news – live: Sadiq Khan plan to let Britons opt in to EU citizenship branded ‘gimmick’, as no-deal threat dangled by PM’s Brexit negotiator

Adam Forrest, Ashley Cowburn, Andy Gregory

Mayor of London Sadiq Khan has said British nationals should be allowed to keep their EU citizenship after Brexit – claiming “associate” citizenship could let them to move freely between member states. Rivals vying to succeed him as mayor dismissed it as “a gimmick” and “a sound bite”.

Boris Johnson’s chief negotiator David Frost has revived the threat of a no-deal crash-out at the end of 2020, saying the UK was prepared to accept an “Australia-style” arrangements with the EU if Brussels continues to insist on “level playing field” rules.

It comes as Tory minister Kwasi Kwarteng demanded changes to the way Downing Street recruits staff after adviser Andrew Sabisky was forced to resign because of his “reprehensible” views on eugenics, race and enforced contraception.

As more offensive comments allegedly made by Mr Sabisky were unearthed, in which he reportedly claimed wives should “submit” to their husband, business minister Kwasi Karteng restated the need to “prevent racists from coming into Number 10”.

The furore follows an attention-grabbing employment drive for “wierdos” from Dominic Cummings, who was warned by former Tory chancellor Ken Clarke that the only way for him to survive at Number 10 would be to “vanish” from the headlines and return to being a “back room operator”.