YouGov/Sun - CON 31, LAB 35, LD 6, UKIP 15, GRN 8

Tonight's YouGov poll for the Sun has topline figures of CON 31%, LAB 35%, LD 6%, UKIP 15%, GRN 8%. A four point Labour lead is the highest since December. It does rather suggest that the Tory leads at the start of the week were probably just noise after all, and we're just seeing random sample variation about the same old neck-and-neck position. As usual I'll update the averages in my round-up tomorrow.

(Regular readers will know this, but just to bring newer readers up to speed, the fieldwork for YouGov polls runs from about 5 o'clock one evening till about 3 o'clock the next day. This means the vast majority of the respondents tend to come overnight. If you are waiting to see if there is any polling effect from David Cameron's announcement on the debate then you won't see it this poll, which was mostly conducted before the announcement. Wait until the YouGov/Sunday Times poll.)