There are so many marginal seats here that a small shift either way could dramatically change the race – but at present, the SNP look on track for a good night.
To many Parliamentarians, rejection by those to whom they have committed themselves has the force of marriage breakdown.
What drives voters most? What are each party’s strengths and weaknesses? And what is going on in the battleground seats?
Nicola Sturgeon’s party would win seven out of these eight seats on these figures. Douglas Alexander, Charles Kennedy, Jo Swinson – all would be out of the Commons.