GMB chief on EU referendum: 'The stakes are massive'
The Remain campaign could lose the EU referendum if Labour voters do not get more engaged in the debate, the new leader of the GMB union has warned.
Tim Roache's comments came in an interview with the BBC's Laura Kuenssberg for Radio 4's World at One.
Listeners in the UK can listen to the discussion in full at 1300 BST on Thursday 2 June.