London:Former Chancellor Philip Hammond has accused UK Prime Minister Boris Johnson of trying to wreck the chance of a new Brexit deal, by making demands the EU could never accept.
Hammond said a no-deal Brexit would be 'a betrayal' of the 2016 referendum result.
Johnson has called for the EU to remove the Irish border backstop plan before the Brexit deadline of October 31.
Many of those who voted against former Prime Minister Theresa May's Brexit deal had concerns over the backstop designed to guarantee there will not be a hard Irish border after Brexit which, if implemented, would see Northern Ireland staying aligned to some rules of the EU single market.
Hammond, in his first comments since stepping down in July, said the early signs that Johnson could take the UK out of the EU with a deal in place were 'not encouraging'.
"The pivot from demanding changes to the backstop to demanding its total removal is a pivot from a tough negotiating stance to a wrecking one. The unelected people who pull the strings of this government know that this is a demand the EU cannot, and will not, accede to," he wrote in the article.
He said Parliament would 'make its voice heard', adding that a no-deal 'must not happen'.