Commenting, SNP Business Convener Derek MacKay said: "This consistent polling showing the SNP leading on Westminster voting intentions – now with a 17 point lead over Labour - is very welcome news indeed. As if party ratings were not bad enough for the Labour leadership, Ed Miliband’s personal ratings have hit a new record low in Scotland. The fact that he is recognised as doing a bad job as leader by more than 80% of people in Scotland – worse even than Nick Clegg – is truly extraordinary.
"Johann Lamont’s resignation has lifted the lid on the scale of the infighting between Labour in Scotland and Labour at Westminster and has exposed the shambles that the Labour Party is for all to see – and people understand that the blame lies squarely at the door of Ed Miliband. The London-based leadership pulling the party's strings in Scotland, and Labour campaigning side-by-side the Tories in the referendum, has proved a deeply corrosive combination which is causing Labour support to plummet in Scotland.
"The latest polling analysis indicates that people in Scotland will not forget Labour's alliance with the Tories. Labour are now polling at just 26 per cent for next year's UK general election, while SNP support has surged to 43 per cent - and has been consistently high since the referendum. Labour were already a party in crisis, and Johann Lamont's resignation - caused by infighting and deep division - has plunged them to a new low."
Poll results
Voting intention:
Scottish National Party 46%
Labour party 24%
Conservative party 16%
Liberal Democrat party 6%
Green party 4%
United Kingdom Independence Party 4%
Respect 1%
British National Party 0%
Other 1%
Party leaders (only 3 main Westminster parties polled)
David Cameron:
Doing Well 33%
Doing Badly 64%
Don't know 3%
Ed Miliband:
Doing Well 12%
Doing Badly 82%
Don't know 6%
Nick Clegg:
Doing Well 21%
Doing Badly 73%
Don't know 7%
