After an exciting evening we are now closing the blog, thank you for following developments with us.
BBC’s Newsnight’s take on the reported acrimony between Boris Johnson and his advisers.
Boris Johnson accused Dominic Cummings of briefing against him and Carrie Symonds, his fiancee, during a tense 45-minute showdown before the adviser’s departure, according to sources.
The prime minister’s senior adviser left Downing Street with his belongings in a cardboard box on Friday evening. Lee Cain, Downing Street’s director of communications, was also told to leave.
Downing Street have insisted that Cummings’s departure would not impact Brexit talks.
The Prime Minister’s official spokesman James Slack insisted that suggestions the Government could compromise on key principles in the wake of Cummings’s decision to leave were “simply false”.
Cummings was widely perceived as the mastermind behind the victorious Vote Leave campaign in the 2016 referendum.
Talks on a free trade agreement between the UK and EU have been continuing this week in London and are due to “pause” over the weekend before resuming next week in Brussels.
London and the EU are trying to hammer out a post-Brexit trade deal after the current transition period finishes on December 31.
Nigel Farage has insisted the exit of Boris Johnson’s top aide from Downing Street means a “Brexit sell-out” is looming.
The Brexit Party leader tweeted: “It is well documented that I have never liked Dominic Cummings but he has backed Brexit.
“Seeing him leave Number 10 carrying a cardboard box tells me a Brexit sell-out is close.”