With the Bank Holiday weekend over, YouGov have finally published their Scottish datasets after a long delay. Among the supplementary questions, the most eye-catching finding is on the subject of leadership -
Do you think Nicola Sturgeon is doing well or badly as First Minister?
Well: 75% (+7)
Badly: 19% (-7)
NET RATING: +56
Do you think that Jim Murphy is doing well or badly as leader of the Scottish Labour party?
Well: 27% (-5)
Badly: 62% (+8)
NET RATING: -35
The gap between the net ratings of the two leaders is now a mind-boggling 91 points, which is 27 points bigger than in the last YouGov poll.
Whatever the die-hard Murphy fans in the media may believe, it is utterly inconceivable that any leader with these ratings could make a case for remaining in harness if he loses his parliamentary seat on Thursday. And even if he clings on in East Renfrewshire courtesy of tactical votes from Tory supporters, there will still be a huge question mark over his position. It's not good enough to pretend that his personal popularity is being dragged down by Labour's generic woes - Ruth Davidson has proved that it is perfectly possible to be associated with a toxic brand, and yet still be held in reasonably high esteem by the public.
It's obviously impossible to quantify exactly how much of a drag the Murphy Factor is on Labour's support, but to persist with the belief that he is (or will miraculously become) a net positive for the party is utterly delusional.
The fieldwork for this poll was conducted between Wednesday and Friday, so as I suspected it mostly predates the Question Time leaders' special on Thursday night, and Miliband's indication that he would be willing to put Cameron back in power in some circumstances. So we're not much closer to knowing what the impact of that development was, other than the little clues provided by Scottish subsamples in GB-wide polls. Today's YouGov subsample is : SNP 44%, Labour 26%, Conservatives 18%, Liberal Democrats 10%, Greens 2%. Yesterday's result was a bit closer, but I haven't spotted anything out of the ordinary since Thursday.
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I recently took part in a short interview for an online Al Jazeera article about the general election - you can read it HERE.