Democrats single out glaring examples of tax preferences or spending priorities that favor the wealthy and Republicans cry 'class warfare!'

I know I made plenty of mistakes in my tenure. But one of the things that you learn is to be very careful and to protect yourself down the road a little bit, which is to say you've got to think ahead and think where is the story going to go? What are all the possible outcomes? And how do I protect the president from unexpected twists and turns in the road?

There are people in the public sector with a range of experiences that have no equivalent in business, but are essential to governing, like keeping a kid in school or helping someone get and hold a job. The value of those skills can't easily be measured against a bottom line.

In the run-up to the 1992 Democratic convention, Clinton's campaign realized that voters thought the young governor had a privileged upbringing. They didn't buy his alleged concern for the middle class.

As women have played an increasingly important role in politics, there is no question that they've brought a different perspective, focusing attention on a broader set of issues and building alliances with other women.

Many differences are rooted in biology and reinforced through culture, so it's important to acknowledge that. Because if you say men and women are the same and if male behaviour is the norm, and women are always expected to act like men, we will never be as good at being men as men are.

Women's particular experiences continue to shape not just their points of view but their actions, in the United States and around the world.