Now it’s Scotland that matters most. Defeat for Labour north of the border is a disaster for Ed Miliband.
Worse could be in store if, as seems likely, the SNP goes ahead with a referendum on independence for Scotland.
Labour would be wiped out at Westminster and lose any chance of forming a Government for a generation if the party were deprived of its cohort of Scottish MPs.
The Scots won’t care about that. They will vote for independence if they think it’s good for Scotland.
When push comes to shove, I suspect they will think they are better off as part of the union than they would be as an obscure region of the European super-state.
But who knows? The Scots have given Alex Salmond an overwhelming vote of confidence.
That is partly because of the slump in support for Nick Clegg’s Lib Dems who are seen as propping up a Tory Government. But Labour did very badly in Scotland as well and there is no excuse for that other than a rejection of the effete Metropolitan Mr Miliband.
It would be tragic if the legacy of Cameron's first Government were the break-up of the United Kingdom but the Tories would be tempted to support the idea because it would leave them in power at Westminster for the forseeable future.