“I will judge my time in office a success if I know that at the end of it, there are working-class kids from ordinary backgrounds who lead richer lives", Rachel Reeves said.
The vote, while not binding, will come as a further blow to Sir Keir Starmer.
"We have cut ourselves off from our principal market, our most important partners, and that is the underlying crisis that faces this country", Mike Galsworthy said.
Labour was promising to increase the digital service tax from 2 per cent to 10 per cent. The day after the festival, it emerged they had ditched the policy.
One contract that has been flagged was handed to a cannabis research company for £33 million worth of personal protective equipment.
Labour needs to increase its vote share to avoid becoming a one-term government or being forced into coalition with others, the research suggests.
Labour Together claimed Corbyn had "flown too close to the sun" when he appeared at Glastonbury in the wake of the 2017 general election.
"You cannot responsibly debate a cut to winter fuel payments without any impact assessment", Mike Galsworthy said.
Unite claim their 'emergency wealth tax' policy would raise £25 billion, and only apply to assets starting from over £4 million.