YouGov/Sun - CON 31, LAB 40, LD 12, UKIP 12

This morning's YouGov poll for the Sun was the first conducted wholly after the Eastleigh result was known, so is the first time we can look for any obvious effect on voting intention. Topline figures are CON 31%, LAB 40%, LDEM 12%, UKIP 12%.

The twelve point score for UKIP is the highest that YouGov have ever shown, so there is a fair chance that it is a reflection of the Eastleigh by-election, but equally, it's only a very small reflection. I half expected a bigger impact, after all, a good by-election performance that creates the impression that a party is a serious contender has in the past had a noticable effect - look at the polls after Brent East for example. Perhaps it would be different if UKIP actually won a seat.

Yesterday also saw the release of the latest TNS-BMRB poll, conducted mostly (but not entirely) after the Eastleigh result. Topline figures were CON 29%(nc), LAB 38%(nc), LDEM 11%(nc), UKIP 14%(+2). Once again it's an increase for UKIP, but nothing really significant (in the case of TNS-BMRB it is not a new high for them as they had one poll last year with UKIP at 16%).