Support for both Labour and Conservatives rises at the expense of the Liberal Democrats and Ukip

This article is more than 6 years old

This article is more than 6 years old

Labour's lead over the Conservatives has remained static on three points although support for both is up at the expense of the Liberal Democrats and Ukip, according to the latest Observer/Opinium poll.

Ed Miliband's party stands on 35%, up one point on a fortnight ago while the Tories are up one point to 32%. Ukip is on 15%, down two, and Nick Clegg's Lib Dems have also fallen two points to 7%.

Ed Miliband's party stands on 35%, up one point on a fortnight ago while the Tories are up one point to 32%. Photograph: Guardian

David Cameron's personal rating has fallen slightly. His net score – those of whom approve of his leadership minus those who disapprove – is now -8, with 38% approving and 46% disapproving.

Miliband's rating has fallen by four points to -24, with 24% approving and 48% disapproving.

Clegg is on -44% (16% vs 60%) and Nigel Farage is on -6% (32% vs 38%).

Opinium also asked about next month's Scottish referendum and found that 32% of those questioned believe the Commonwealth Games being held in Glasgow will affect the result. Of those 20% thought it made a yes vote more likely with 12% thinking it would more likely lead to the outcome being a no.

But most people in England and Wales want Scotland to remain in the UK with just 19% wanting them to become independent. However, when asked how the Scots themselves will vote, 27% thought they would vote to leave while 54% of voters thought they would favour staying in the union.

Opinium Research carried out an online survey of 1,979 GB adults aged 18+ from 29 July to 1 August 2014. Results have been weighted to nationally representative criteria.