IAN Murray, Labour’s only MP in Scotland, used to be in the invidious position of having to walk the line between Labour and Tory policies to retain the support of both in his Edinburgh constituency.

Now he can indulge in the kind of behaviour towards the SNP that is found on the Tory benches (“MP apologises after calling SNP MP ‘ridiculous and pointless’”, The National, November 3) because he knows that the Labour, Tory and LibDem parties have so much in common that they are fully integrated in Edinburgh City Council.

It is ironic that the Unionist vote in elections will continue to be split across party lines in Scotland because voters are supporters of three separate London-based Unionist parties that have so much in common that their members are now fully integrated in councils in Scotland.

John Jamieson

South Queensferry