Indeed he called a vote for a general election after Parliament had approved the bill against a no-deal Brexit, but his proposal was once more rejected by MPs.
Mr Mann previously said he could not campaign for Mr Corbyn knowing he could become Prime Minister, and told The Sunday Times he would "never forgive" his left-wing leader for allowing the party to be "hijacked" by anti-Semites.
Telling the house he wanted to discuss politicians obeying the rule of law in a speech that was persistently and angrily shouted down by his former Labour colleagues - with no attempt at intervention from the speaker - Mr Austin emphasised his feeling that it was hypocritical, given the past behaviour of members of the Labour leadership team, that they should lecture the Prime Minister on being lawful.
"The only way to break the Brexit deadlock once and for all is a public vote in a referendum", he will say.
"If you're a worker with a boss who makes you work extra hours for no pay or forces you into unsafe situations, you deserve a government that's on your side and ready to step in to support you", he said. Whether it is or isn't, the labour movement mobilisation against Boris Johnson's government should build throughout September and aim at a huge demonstration for democracy outside the Conservative Party conference, focused on forcing an election to address the catastrophic social, economic and environmental crises afflicting our country and the world. He made the comment in a speech Tuesday.
Mr Mann said a "huge swathe of voters" would feel deserted by the party if Mr Corbyn backed the 48 per cent of voters who opted to remain in the European Union in the 2016 referendum.
Labour leader Jeremy Corbyn on Tuesday. BEN STANSALL AFP Getty Visuals
Despite having twice blocked the government's bid for a snap election, Corbyn is in campaign mode as the United Kingdom gears up for a national ballot expected in the fall.
Tory chairman James Cleverly said Labour was "running scared" of an election, adding: 'Labour's deputy leader makes clear Labour want to cancel the referendum result.
"This hottest trick would suggest delaying Brexit all over again for up to a yr, handing above £250 million a week to Brussels for no reason".
Labour's unhelpful insistence on rerunning the referendum may be an obsolete policy by election time.
"Nothing could be further from the truth".
Also came the confirmation that Amber Rudd, who quit Mr Johnson's Cabinet criticising him for failing to prioritise preventing no deal, would not run in her Hastings and Rye constituency at the next general election. They demonstrate that it is the only party with a vision radical enough to tackle the deep-rooted systemic problems we face.
"But very soon we will have to beat them at the ballot box. A general election might well fail to solve this Brexit chaos".