The Conservatives do not want to go into an election with the leaders' relative ratings as they are - but it is depressing to hear that plans are afoot to paint Miliband as the Michael Dukakis of British politics: part of a metropolitan elite with no understanding of mainstream concerns.

Many people supported the Conservatives because of David Cameron, while many people supported Labour despite Ed Miliband. Deteriorating opinions of Cameron will therefore have a bigger impact on the Conservatives' vote share than worsening views of Miliband would have on Labour's.

My father was one of the fortunate wartime servicemen: he made a full recovery from his injuries, was promoted to captain, survived the war, had a satisfying career as a colonial officer and, eventually, died in February 2002, a month before his 85th birthday.

We spent too much time attacking Gordon Brown and Labour rather than setting out our own plans. People had decided they wanted change - the thing they were not sure about was the alternative we were offering, so going on and on about Labour missed the point.

History is full of people with great ideas, but leaders also need to ensure their visions become reality.

Every time I would give a talk, someone would say, 'You ought to go into politics.' I prefer to call it government leadership. My life has taken me to places where I have experiences that I think I can share. A lot of times, we see people who are career politicians. I'm not the conventional candidate, nor do I want to be.

I have tried to be a leader. I have tried in my role of being one of the first women at Google, let alone the first woman to have a baby, to really try to set the tone that this is a great place to work for diversity reasons.

I quit it because at the end of seven years in an ensemble show with one leader, I thought: 'I will be known as 'Dallas' starring Larry Hagman and the cast.' And at this point in my career - I was in my mid to late 30s - I thought, 'Now is the time when it's hottest for me to go out and establish my thing.'