The European Union has said the Brexit talks could be derailed by an escalating fight over money as it fired back at Boris Johnson for telling the EU leaders to “go whistle” if they expected Britain to pay a divorce bill for withdrawing from the bloc. “I am not hearing any whistling, just a clock ticking,” said the EU negotiator Michel Barnier at a press conference in Brussels to preview the next round of talks, due to begin on Monday.His London counterpart, the Brexit secretary, David Davis, has not yet presented a formal UK position on the scale of any financial settlement when Britain leaves, which some estimates have suggested could be as a high as €100bn.

But EU officials are adamant that failure to at least acknowledge the principle of ongoing budget obligations would prevent talks from proceeding at all and not allow any discussion of future relationship issues such as a free trade deal.

“The three priorities for the first phase are indivisible,” said Barnier, referring to the financial settlement, citizens’ rights and other separation issues such as the Northern Irish border. “Progress on one or two would not be sufficient in order for us to move on to the discussion of our future relationship.”(theguardian)…[+]