Today's Guardian carries a fascinating interview with Robert Harris, whose novel "The Ghost" - about an ex-prime minister accused of war crimes - has just been turned into a film.

I read the novel last year, and in his thinly veiled attack on Tony Blair, Harris's anger is palpable.

Seeing this article reminded me of a particularly poignant moment at the end of the BBC's excellent documentary on ‘The Blair Years', when Robert Harris (a stalwart supporter of Blair in the early years of New Labour) says, ‘I do think it's a tragedy, because Blair was of my generation and this was our shot'.

This sentiment is shared by so many, who had grown up through the Thatcher years, and who felt genuinely hopeful that, when Labour swept to power in 1997, it would usher in a better, fairer Britain - and that is why the sense of betrayal is so great.

Labour has let us down.

They had 13 years to get it right. And they have been a desperate disappointment in so many critical areas that matter to people.

Across the country, apart from amongst a few diehard party members, I cannot imagine that there will be much feeling of excitement as people wake up on the morning after the General Election and are faced five more years of the same, whether it be Labour ‘same' or Conservative 'same'.

But in Brighton Pavilion it can be different. We have the chance of waking with a sense of excitement for the future, by being at the forefront of a Green breakthrough at Westminster.