ITV News poll: Labour establishes 'convincing' lead in key marginals
Labour has established a "convincing" 11-point lead over Conservatives in the key marginal seats Ed Miliband would need to win to secure victory in next year's general election, according to a new poll by ComRes for ITV News.
The survey of the 40 tightest Labour/Conservative battlegrounds comes as a further blow for Prime Minister David Cameron, who is trying to use his party's annual conference in Birmingham as a launchpad to secure an overall majority in 2015.
In the 40 crucial constituencies, Mr Miliband's party enjoys the backing of 41% of voters (up five points since a similar poll in June), ahead of the Tories on 30% (down one), Ukip unchanged on 17% and Liberal Democrats on 6% (down one).
