Justine Greening says the only way to break the deadlock is with a second referendum TIMES PHOTOGRAPHER JACK HILL

Theresa May bowed to pressure from Conservative Brexiteers today and accepted legal changes to her Chequers blueprint that could make a customs deal with the EU impossible.

Downing Street said it would agree to a wrecking amendment, put forward by Tory rebels, that will affect Mrs May’s plans for a new customs partnership with the EU. The amendment would prevent the government from striking a customs deal with the EU unless Brussels agreed to collect tariffs on behalf of the UK.

Mrs May’s spokesman claimed this afternoon that the amendment was “consistent” with her Chequers proposals.

Yet the government’s white paper clearly states that “the UK is not proposing that the EU applies the UK’s tariffs at its border for goods entering the UK”. Any…