There's a change in the 'certain to vote' demographic - and it favours Labour
Dr. Roger Mortimore writes in Politics.co.uk: "The thing that determines election outcomes is not how many people support a party but how many vote for it".
Ipsos has been brewing up some spine-chilling findings this Halloween, from the politician Britons find most frightening to which party leader they'd trust to host the ultimate monster mash.
