Ed Miliband's party opens up a two-point lead in the latest ComRes poll.
Tories behind in new Populus poll for the first time since November 2007.
Support for party plummets to lowest level in 13 years.
Support for Labour rises four points to 40 per cent in the wake of the student fees announcement.
Poll shows 83 per cent support child benefit decision - Labour must be clearer in its defence of the
A major psychological boost for Ed Miliband.
Party's poor poll ratings trouble activists on eve of annual conference.
Labour draws level with the Conservatives for the first time since October 2007.
73 per cent of voters no longer know what the party stands for, latest poll finds.
Liberal Democrats fall to 12 per cent in new YouGov poll, their lowest rating since 2007.
Latest Ipsos MORI poll puts Labour on 38 per cent, with Tories just ahead on 40 per cent.
But how long will the honeymoon last?
Poll shows voters approve of George Osborne's Budget as Tory support reaches post-election high.
There has been no mass defection of voters to Labour from the Liberal Democrats.
Final pre-election polls show the Tories around 30 seats short of a majority.
Tories just 5 points ahead of Labour as Lib Dems drop 4 points to 24 per cent.
Tories down one to 33 per cent as Labour rises three to 28 per cent in new Opinium survey.
Conservative support down three to just 33 per cent in latest ICM survey.
Conservative lead back up to 10 points in latest ComRes poll.
David Cameron's performance in the final leaders' debate fails to boost Conservative support.
Labour unchanged on 27 per cent in latest YouGov poll.
Lib Dems up three points to 31 per cent in latest YouGov poll.
Support for David Cameron's party rises four points to 36 per cent in latest Populus poll.
Latest ComRes poll puts Tories down two to 32 per cent, just a point ahead of the Lib Dems.
Latest YouGov poll suggests a hung parliament remains the most likely outcome of the election.
Latest polls put Lib Dems ahead of Labour and show little decline in support.
New YouGov poll suggests press attacks have not damaged Clegg as Lib Dem support rises to 29 per cen
Latest YouGov poll puts Tories five points ahead of Labour.
New poll puts the Conservatives eight points ahead of the Lib Dems.