The app for the UK Conservative Party's annual conference has suffered an embarrassing security breach, exposing the personal contact details of anyone attending including senior government ministers.
"Chequers can not command support at Conservative Conference, let alone in Parliament or across the country", said Paul Blomfield, a Brexit spokesman for Labour.
Brexit Secretary Dominic Raab planned to tell Conservative Party members in a speech that if the EU tries to "lock us in via the back door" by keeping Britain in the bloc's single market or customs union, "then we will be left with no choice but to leave without a deal", according to extracts released in advance.
Image The prominent Tory Eurosceptic warned against the 'UKIP-isation' of Brexit
The main opposition Labour Party accused Raab of being "in denial" over May's Chequers plan, named after her country residence where an agreement was hashed out with her ministers in July.
Meanwhile pro-European Conservatives joined hundreds of people chanting "Bollocks to Brexit" at a rival rally calling for a new European Union referendum.
"Unlike the Prime Minister, I fought for this, I believe in it, I think it's the right thing for our country and I think that what is happening now is, alas, not what people were promised in 2016", he said.
"Where they have problems, let's actually hear them".More news: 49ers called Steelers to explore Le'Veon Bell trade
COMEDIAN and television host Patrick Kielty has launched a series of online attacks against Tory MP, Boris Johnson over his plans for a "better Brexit".
Johnson, the bookmakers' favourite to succeed May, has become a cheerleader for hardline Brexit supporters in the Conservative Party who have denounced her so-called "Chequers" proposals and has put forward his own plans for an alternative free trade deal.
On the main stage at the Tory conference on Sunday, the businessman and peer Lord Digby Jones - who was part of the Leave campaign and a former CBI chief - said reports Mr Johnson had used the f-word when referring to businesses' Breixt concerns "showed him up for the irrelevant and offensive person he really is".
"I think one of the blights of British politics is politicians having fantastic ideas that cost a fortune and don't do much good", Mr Davis told Sky News's Sophy Ridge On Sunday.More news: Amy Klobuchar Weighs In On Her Confrontation With Brett Kavanaugh
"I think Boris's popularity is descending very quickly".
He said: "Quite a lot of his ideas are good headlines, not necessarily good policies".
The British Chambers of Commerce said it wanted the Conservatives to overcome their internal divisions and "to deliver real-world, practical answers to business's ongoing questions around Brexit - and avoid a messy and disorderly exit from the European Union".
They added: "I don't think Boris will do it in the end because he will realise he doesn't have the support and it will be embarrassing what poor support he has".More news: Earthquake And Tsunami Death Toll Rises To Over 800 In Indonesia