This post by my old friend Fraser Nelson is the best thing I've read so far about the Glasgow East by-election:
It is tragic comic to see Labour taking such a philosophical attitude to the scandalous deprivation in Glasgow East during this election campaign as if they were talking about the weather. “Oh, its heartbreaking and very complex” they say and use phrases like “multiple deprivation” to make it sound so complicated that government cant do anything about it. What’s happened is that Labour’s remedy to poverty – more money – has made the problem worse.
As they recommend, read the whole thing.