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Why the GRN voters might not swing back to LAB at GE15 even in the marginals

October 30th, 2014

When pressed on constituency question just 10% switch to red

Today’s YouGov of CON 31, LAB 34, LD 6, UKIP 17, GRN 7 highlights the need to analyse what is happening to the GRN vote and what might happen in the key battlegrounds that will decide GE15.

As ever the main source of published data is from Lord Ashcroft. The aggregation of a series of constituency polls means that sub-samples can be large enough to draw conclusions with a reasonable degree of confidence. Also, of course, Lord A is the only one asking the two stage voting question.

The chart above is based on the aggregate data from his October round of LAB-CON battlegrounds polling with the two voting questions. After the standard one those sampled are asked to think specifically about their own constituency and in many cases there is quite a difference. It is the change that can be illuminating.

The big picture on the first question is that getting on for half of current GRN support is coming from people who voted LAB or LD in 2010. But look what happens when the second stage question, that relating to the specific seat is asked.

As can be seen above just under three-quarters of those saying Green to the first question still say they will vote for the party on the second. To me what is interesting is what happens to the rest. Yes LAB does best taking a 10% slice but that’s nothing like as large as the red team might hope. A total of 4% say CON and 6% say LD. UKIP at 2% in included amongst others.

Given rising GRN shares generally I plan to keep a close eye on what is happening and will be returning to this in due case.

Mike Smithson

2004-2014: The view from OUTSIDE the Westminster bubble