The man who helped Bill Clinton and Tony Blair get elected is providing high-level strategic communications advice in a number of seats that Labour is fighting hard to hold.
Greenberg confirmed he was involved in Labour's general election effort, but stressed that he was not working for the party HQ. He told PRWeek: 'I have been doing some work in marginal seats - but not for the Labour Party, for the individual candidates ... I'm keeping in touch with voters.'
A Labour insider revealed: 'There are a few marginals where the campaign teams wanted some extra help. It's a case of every vote counts, so Greenberg has gone in to take the temperature.'
Greenberg would not elaborate, but he is believed to be working for about six Labour candidates, crunching polling data and crafting key messages. Labour sources speculated that Schools Secretary Ed Balls was one heavyweight candidate who stood to benefit from Greenberg's experience. Balls is mounting a fierce local campaign to win over voters in his new constituency of Morley and Outwood, where the Conservatives pose a serious threat. The Unite and Unison unions are helping to fund the campaign.
However, an aide to Balls insisted: 'Stan Greenberg is not in any way involved in Ed's local campaign.'
Fellow pollsters suggested that Greenberg would be better suited working for a first-time candidate, noting his track record of working for 'change agents' who have gone on to defeat tired incumbents.
Greenberg was chief pollster to Bill Clinton in his successful 1992 presidential campaign and advised Tony Blair during the 1997, 2001 and 2005 general elections. In 2007, he provided Gordon Brown with polling data as the PM contemplated holding an early election, but has not worked for the party since.
- Read the in depth interview with Stan Greenberg