Lord Ashcroft poll shows that 56 per cent of voters would like to see a Labour-led government after the next election.
New YouGov poll puts Labour 13 points ahead of the Tories.
What lies behind Labour's 10-point poll lead?
Why weak poll ratings will strengthen Clegg's hand ahead of the Budget.
The Tories surge past Labour in the polls after Cameron's rejection of a new EU treaty.
Lib Dems fall to seven per cent in new poll, just two points ahead of Ukip.
Labour lead up to eight points as Tory support falls to just 33 per cent in new Populus poll.
Latest YouGov poll puts the Tories on 39 per cent, just a point behind Labour.
New ICM poll puts the party on 18 per cent, their highest rating since September.