Speaking to the BBC, Kinnock said: "It is a matter of mood and self-delusion that makes people eventually, regardless of what they feel they should be doing when they speak to the opinion pollsters, taking a different view with that stub of pencil in the privacy of a [polling booth]."
Kinnock has previously been accused of incurring Adolf Hitler to smear David Cameron during the election campaign, after he accused the Conservative leader of telling a "great lie".
GENERAL ELECTION 2015
Suggested For You
Get top stories and blog posts emailed to me each day. Newsletters may offer personalized content or advertisements. Learn more