0941:One minister who has not lost his sense of humour during the hectic campaigning is Lord Mandelson, the BBC's Iain Watson reports from the prime minister's train. He is approached by a passenger who asks him to sign her copy of the now Lib Dem-supporting Guardian for her "friend". He complies with her wishes and signs it, "Peter Mandelson pp The Dark Lord". Asked what she does she replies she works for the polling company Mori, but doesn't offend Lord Mandelson by pointing to Labour's current ratings. More