Hunt warned that there will be “a lot of stress on pollsters” and that the 2015 elections will see “a high variability in the polls and some shocking results” when he spoke at Edelman’s Crystal Ball event in London.

Hunt added that uniform voting intentions were unlikely as there would be a “greater intensity at local level”.

Overall he pointed to the continuous political fallout of the Scottish referendum, saying there was an increasing anti-politics environment in modern Britain, as well as the more widespread fallout across political parties in Europe since the economic crash.