From Ipsos Mori, yesterday:

The Labour Party has pulled level with the Conservatives for the first time since January 2008. The Conservatives, at 37%, are holding their May general election share, while Labour is up seven points, the Liberal Democrats are down eight, a 3.5% swing back to Labour. The government now has a negative satisfaction rating — the first time this has happened since the election.

Ipsos MORI's September Political Monitor for Reuters shows that, among those who are absolutely certain to vote (62% vs. 65% at the General Election in May), 37% say they would vote Conservative, 37% Labour and 15% Liberal Democrat.

The swing to Labour is particularly evident among young people, those in social grade DE (i.e. semi-skilled and unskilled manual workers and those who depend entirely on benefits), and those outside the south of England. This may reflect recent coverage that such groups may be particularly affected by impending spending cuts. The Liberal Democrat score is nine points lower than the party’s actual voting share in the general election.

The reaction has already begun.

And that’s with Labour not even having a leader.