Poll of marginal seats points to Labour majority I don't want to see a Labour majority of 4, let alone 84. But I hope this puts the challenge into some sort of perspective," he said. We have a long way to go to hold onto the seats we gained last time, let alone pick up many more. But things are slightly less grim than the headline polls suggest, and we have everything to play for. Labour would win 93 of the 109 most marginal Conservative seats (needing a swing of up to 11%) in which they are in second place. The swing to Labour is biggest in the Thames Estuary, the Midlands and some Northern seats, but lower in Southern Towns and Suburbs and in London. There is a 5% swing from the Liberal Democrats to the Conservatives in Lib Dem-held seats in England and Wales where the Tories are second. In English and Welsh Liberal Democrat seats where Labour are second, there is a 17% swing to Labour. In total Labour would gain 109 seats, giving Ed Miliband 367 MPs in the House of Commons, an overall majority of 84. This compares to a Labour majority of 114 that would be achieved on a "uniform swing" according to current national polls.