The UK Independence Party surge has continued with two opinion polls giving the party record levels of support.
An Opinium poll put Nigel Farage’s party on 20%, while a ComRes survey put them on 19%.
The ComRes poll for the Sunday Mirror and Independent on Sunday found support for Nigel Farage’s party was up 4% since the last survey a month ago, with Labour down three points to 35%, the Conservatives down one to 29% and the Liberal Democrats were unchanged on 8%.
The Opinium poll for the Observer put Labour on 37%, Tories on 27% and the Lib Dems on 7%.
According to the ComRes study 46% of Britons would vote to leave the European Union in a referendum now, compared with 24% who would stay in. But if some powers were returned to the UK from Brussels 43% would vote to remain in the EU, with just 24% determined to see Britain leave.
The poll found just 26% said David Cameron was a good prime minister, a record low in ComRes studies, while 31% believed Ed Miliband was performing well as Labour leader, a new high.
The ComRes survey also revealed that 57% of voters believed Mr Cameron’s party was more divided over Europe than it was under Sir John Major, with 14% disagreeing.
But there was some comfort for the Prime Minister, with 49% of voters saying the offer of a European referendum would be important to them at the next general election, with 27% disagreeing.
And 32% believed Mr Cameron would make the best prime minister of the party leaders, with 24% opting for Mr Miliband.
:: ComRes interviewed 2,017 British adults online on May 15/16. Data were weighted to be demographically representative of all adults and by past vote recall. Opinium Research carried out an online survey of 1,955 GB adults from May 14 to 16. Results have been weighted to nationally representative criteria.