When I became White House press secretary, there were other limitations that were thrust upon me. Bill Clinton was under pressure to appoint women to visible positions. I was 31, I'd never worked in Washington. Was I ready for this large and visible job? Still he wanted the credit. So he gave me the job but diminished the job.

If people believe you're on their side, they will trust your decisions.

Campaigns often make standing on principle the highest of virtues - and listening to your opponents a sure sign of weakness. It's the virtual opposite of what it takes to succeed in office. Squaring the circle takes a powerful combination of skills. But presidents who can campaign and compromise are generally the most successful.

Washington is still very much a male-oriented culture. Being from Los Angeles, I think it is less so there - there is less attachment to tradition, perhaps, there is more flexibility, more acceptance of change generally. That is partly because of Hollywood.

And Clinton was like that - he saw the whole playing field. He didn't just see the event that he was at or the circumstances of that week or that month. He saw the whole playing field all the time.

Barack Obama is the most famous living person in the history of the world.

When I first started working in politics, as a junior aide on Walter Mondale's 1984 presidential campaign, it never occurred to me that I would one day work in the White House. There were plenty of women among the volunteers who stuffed envelopes and walked precincts. But there were fewer and fewer on each successive level of influence and access.