How did the pollsters get the main prediction of the UK General Election wrong? – although they got a number of things exactly right e.g. collapse of the Lib Dem’s, UKIP’s 12% vote share and the SNP dominance in Scotland. Here Peter Kellner – President of YouGov offers his views.

LucidTalk have produced an Elections night guide with some of the seats to watch, and key points to look out for. The Belfast Telegraph correspondents are also at all the counts and will be providing ‘live’ updates, with all the latest information and trends – see belfasttelegraph.co.uk for details.

See our guide on the Belfast Telegraphs political blog: DebateNI, including details of all the planned coverage from the Bel.

No pollster or political soothsayer can guarantee what will happen on Thursday. All we can really promise is to raise uncertainty to a higher level of sophistication. The closeness of the Labour-Conservative race is plainly one reason. If today’s polls are slightly out, or there is a last-minute swing, the results may confound all expectations.