Jeremy Corbyn should remain leader of the Labour Party "whatever happens" in the general election, according to Clive Lewis, a former member of his shadow cabinet.
"Once you look reality in the face and realise that the SNP is a perfectly progressive, nearly social-democrat party, I would have no problem in principle of starting from the position of having an alliance with them in government rather than having it as a matter of expediency", the Labour supporter said.
A Labour government would increase taxes by nearly £50 billion and borrowing by £25 billion a year to pay for "a fairer, more prosperous society for the many, not just the few", Jeremy Corbyn has announced.
The proposals are still being finalised and are separate to the party's manifesto, which was leaked to reporters last week.
He described it as a "Britain for the rich and the elite and the vested interests" while millions have struggled.
Mr Johnson said the tax burden was "already heading upwards", adding: "If Labour could raise the £49 billion it claims, we would have highest tax burden in 70 years".
"And that means that just as you can not thrive without us, so we can not thrive without you".
"Our manifesto is for you".
The Labour leader will argue he is setting out "a programme that is radical and responsible".
The party would increase corporation tax, introduce a financial transactions levy and raise income tax for the top 5 percent of earners, adding a new top rate of 50 percent for people earning 123,000 pounds a year or more.
Labour said it will not try to overturn Britain's decision to leave the European Union, but will "negotiate a deal that preserves jobs and access to the single market" and maintains standards of workers' rights established under the EU.
He received big cheers for stating Labour will scrap tuition fees to ensure it lifts the "debt cloud" from hundreds of thousands of young people.
Speaking ahead of the launch, Mr Corbyn said that Scotland "doesn't need or want a second independence referendum".
Ending hospital parking charges and creating four new bank holidays were "smaller things that can make a real difference".
It also says Labour supports keeping Britain's nuclear-armed submarines - something Corbyn personally opposes.
"Holding another referendum on leaving the United Kingdom is the wrong thing to do for Scotland's economy, especially when there is so much economic uncertainty from the Tories' plans for a reckless Brexit", he added.
A national investment bank and regional development banks would "finance growth and good jobs for all parts of the UK".
Renationalising the railways would "put passengers first", Labour would "take back control" of water by bringing it under regional public ownership and there would be a "public stake" in the energy sector to keep bills down.
Pictures of Theresa May's visit to Abingdon - where she was challenged by Cathy Mohan about cuts to disability benefits - appear in numerous papers, with the Daily Mail calling Ms Mohan "the voter who took PM to task over cuts" and the Guardian captioning the image "May finally meets a member of the public".