Chukka Umunna said he had spoken to a 'substantial minority' of Labour MPs who 'simply would not countenance' Jeremy Corbyn becoming Prime Minister.
Senior Labour figures are accused of interfering with the disciplinary process investigating claims of anti-Semitism.
In a letter to Theresa May, Jeremy Corbyn said their talks have been "unable to bridge important policy gaps".
Stuart Davies, a member of Clwyd South Conservatives, shouted at the Prime Minister to resign as she began a speech to Welsh Tories in Llangollen. The National Convention don't want you, we don't want you,” shouted Mr Davies, who described himself as a loyal Conservative. Afterwards, he told journalists that Mrs May should resign “now”.
Rebecca Long-Bailey was responding to fresh anti-Semitism claims against Jeremy Corbyn.
After weeks of debate, they are simply reiterating their plan to hold open the “option” of a public vote if they can’t get their own deal or a general election. Brexit has sucked out any content or meaning from the British electoral system. If you believe we should both be supporting an alternative Brexit and seeking to stop it: vote Labour.
Labour MPs and MEPs are signing a letter to the party's ruling NEC calling for its EU election manifesto to commit to a second referendum.
MPs are preparing to take control of the Commons timetable with a second series of "indicative" votes on Brexit.
Labour deputy leader Tom Watson backs Jeremy Corbyn over his ability to be Prime Minister - just about - and talks about the anti-Semitism row engulfing the party.
So that’s it. After two years of threats and lobbying and love-bombing and social media anguish and conference motions and tortured media statements and Love-Corbyn-Hate-Brexit placards, campaigners seem to finally have what they want. A statement today confirmed the party was preparing to back a public vote.
From the bitter arguments that ring round halls, marches and meeting rooms, you’d never imagine all these people shared a common goal. Indeed, references to the People’s Front of Judea were flying fast as news broke on Monday that seven MPs were leaving the Labour party. On mainstream and social media, Labour supporters poured scorn the progressive credentials of the newly-independent MPs.
With just 39 days to Brexit, a group of Remain supporters split from the Labour party. Leaving now seemingly gave up on pushing the Labour leadership into backing a second referendum, when there were no disadvantages to leaving in a few weeks instead. It was hard to watch the press conference from the seven Labour MPs without a strange sense of hope.