A review of three polls.
I launch today a new section of my website featuring an index of the 114 seats I have surveyed since last May.
Plus, should Nigel Farage be standing in Doncaster North rather than Thanet South?
Four-party politics is driving striking changes – and there are two seats where UKIP is now in the lead.
I have also taken another look at Sheffield Hallam and South Swindon.