YouGov boss Peter Kellner has clarified this morning’s poll putting UKIP on a suspiciously low 17% for the Euro elections. With ComRes placing UKIP’s European Parliament ratings at 23% and Survation at 22% over the past week, the YouGov poll seemed considerably off. Kellner explains that the 17% figure was arrived at using the “two-stage” prompting method where the initial choice is only between the main three parties. When UKIP were prompted, YouGov found they had a rating of 19%. As Kellner says: “To put it another way, on a like-with like basis, we all put UKIP’s EP support at 21% plus or minus two”. And it’s only going to go one way from here…