UK can change mind on EU single market until 2021, says Michel Barnier

The EU's chief Brexit negotiator has told Theresa May she can change her mind on leaving the bloc's single market up until 2021.Michel Barnier revealed Brussels would consider a reversal of the Government's commitment to quitting the single market even after Brexit.The European Commission official suggested the UK could yet abandon its "red lines" within the planned Brexit transition period, which is due to last until 31 December 2020.