So far, at least, the intense Daily Mail campaign against Harriet Harman is not being reflected in the daily YouGov figuresFebruary 26th, 2014
LAB lead back up to 6 in tonight's YouGov Sun poll CON 33% LAB 39% LD 10% UKIP 11%
— Mike Smithson (@MSmithsonPB) February 25, 2014
That is not to say that it won’t
Today’s YouGov poll for the Sun sees LAB back at 39% the share at which it has been getting for months as the YouGov weekly average trend chart above shows.
One of the dangers with all polling analysis is to confuse correlation with causation. Clearly many factors are at play all the time.
There is also a view that I share that it can take time for big external events to show up in the polling so it might be that if the Harman issues are indeed having an impact it will take a little bit longer to show.
Until now, of course, the coverage has largely been in the Daily Mail itself. That has changed with the moves yesterday and the story is being covered more widely elsewhere in the media.
We know from Ipsos-MORI that Labour voters only make up a realively small share of the Daily Mail’s audience. See this chart of 2010 voting.