A Conservative MP says she sees no alternative other than backing another referendum on leaving the EU.
Heidi Allen – who campaigned to Remain in the EU in 2016 – said the “right-wing” of her party had made Theresa May’s Chequers Brexit plan – “dead”.
“They have behaved unacceptably through this and have completely tied her hands,” she told the BBC.
The prime minister has ruled out a referendum on the outcome of the Brexit negotiations.
But Ms Allen, MP for South Cambridgeshire, told Radio 4’s Today programme that while she would still support in principle an “11th hour” deal from Mrs May and the EU, “too many” of her party – especially those on the right – would not.
Ms Allen said she had been left with “no alternative other than asking – should we come to that, no deal, that looks like that’s what’s going to happen – then we need to go back to the public to decide what they want us to do next.”
On what a further referendum could look like, Ms Allen suggested that it should include the option of staying in the EU under existing terms.
The People’s Vote campaign group wants to give the public the final say over whether the UK leaves the EU, arguing that voters should be given a choice between leaving with or without a deal or staying on current terms.
Ms Allen’s comments come after ex-PM Sir John Major also made the case for another Brexit vote and highlighted the “completely unacceptable” attacks by certain Tory MPs on Mrs May.
Last week Labour members voted to keep the option of another referendum on the table if parliament is deadlocked over the final outcome the government’s Brexit negotiations.
The UK is due to leave the EU on 29 March 2019, and negotiations on the terms of exit and future co-operation are continuing.
The Conservative party is gathering in Birmingham for its annual conference.