Cross post:ex-Lib Dems and Miliband's low ratings
I just posted this on the Opinium blog which is me asking whether the fact that Ed Miliband generally gets lower ratings among Labour voters than David Cameron does among Conservative voters can be explained by the fact that such a large proportion of current Labour voters are former Lib Dems who decided to vote Labour the minute Nick Clegg and David Cameron stepped out into the garden for their first Number 10 press conference.
David Cameron's ratings are generally pretty high (80-90% of current Conservative voters approve of him) partly because the Conservative vote has shrunk since 2010 and current Conservative voters are likely to be closer to the core party loyalists than more sceptical, floating voters.
Conversely, Labour's share is about 7-8 points higher than 2010 and therefore includes the core vote of about 29% with the rest being people who have moved to Labour since 2010, including the sizeable block of ex-2010 Lib Dems. Hence Ed Miliband's ratings among Labour voters are generally around 50-55% with far more being in the "Neither approve nor disapprove" category than you get for David Cameron.
Unfortunately the theory doesn't work and, if you read the Opinium post, you'll realise that the title is a QTWAIN. Reasons are after the jump:
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Labels: Ed Miliband, Opinium, polling
