YouGov/Sun - CON 32, LAB 37, LD 9, UKIP 14

The Sun politics team have tweeted tonight's YouGov poll - the topline figures show the same five point Labour lead as yesterday: CON 32%, LAB 37%, LD 9%, UKIP 14%.

There's more interesting electoral news though, Patrick Mercer has resigned in Newark triggered a by-election in what would normally be a safe Tory seat. The timing could hardly be worse for the Conservatives - it is too late for the by-election to be held on the same day as the European elections, so the by-election will presumably come fairly soon afterwards, at a time when UKIP will almost certainly be enjoying a big publicity boost from having done well in the European elections...