David Cameron has the worst public rating in referendum run-in

Despite ditching Westminster in favour of a trip north of the border last week, David Cameron is coming off worse than his Scottish counterparts in the independence referendum run-in.

In fact, in a new poll by YouGov, which asked participants to rate the main politicians' attempts to sway the Scottish vote, the prime minister was ranked the lowest of six rivals.

Alex Salmond, Gordon Brown and Alistair Darling were the only politicians to receive a positive rating overall.

How have these IndyRef politicians performed?

(Respondents from England, Scotland and Wales. Numbers shown as percentage of 1,900 polled):

When only Scottish voters were asked, two SNP politicians - Nicola Sturgeon and Alex Salmond performed much more favourably, with no Westminster politicians having positive ratings:

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