Why are these Lib Dem ratings all over the place?
What is it about polling the third party? Just look at the figures in the panel above showing the Lib Dem shares in the latest surveys from the six firms that carry out regular national voting intention opinion polls. All but Populus are from surveys that have been published in the past week. How can you possibly have a situation with such a range of shares from the six different pollsters? This is important because the broad trend in most…