Lord Mandelson has paid tribute to John Prescott after his death, saying he was a "tremendous force of nature."
He tells Sky's Kay Burley how it was to work alongside the former deputy prime minister in Tony Blair's cabinet, describing him as "one very essential part of new Labour".
Lord Mandelson said he "basically kept us in our working class roots and our trade union history and he was the bridge between that and the modernisers in the Labour Party."