Labour leadership: 'Jeremy Corbyn lit up our movement' - Unite
Speaking at a rally for Jeremy Corbyn, Unite union boss Len McCluskey told the BBC: "He has lit up our movement in a way that I didn't think was possible."
Mr Corbyn is up against shadow health secretary Andy Burnham, shadow home secretary Yvette Cooper and shadow health minister Liz Kendall for the Labour leadership job.
Voting closed on Thursday and the result will be announced on Saturday.