YouGov/Sun - 33/27/31

Tonight's YouGov poll has topline figures of CON 33%(+2), LAB 27%(+1), LDEM 31%(-3). A drop for the Liberal Democrats, but YouGov has been bouncing back and forth between Lib Dem and Tory leads since the debate - realistically the position seems to be stable, with the changes all just random variation within the margin of error.

We also have a new poll from TNS-BRMB, who I think are the final pollster left to produce a "post-debate" poll (though a very small part of the fieldwork to this poll was conducted prior to the debate). Their figures are CON 34%(-2), LAB 29%(-4), LDEM 30%(+8).

Later on we have ComRes's daily poll. Remember that it is a rolling poll, and half the data in today's poll will actually have been in yesterday's poll that showed a nine-point Tory lead (and judging by the shift in yesterday's ComRes figures, the new half of the data yesterday must have been very Tory). Don't be surprised therefore if tonight's ComRes poll also shows a decent Tory lead, it's the drawback of rolling polls - if you get one perculiar sample it takes a couple of days to work its way through.