Study after study confirms that even when you control for variables like profession, education, hours worked, age, marital status, and children, men still are compensated substantially more - even in professions, like nursing, dominated by women. No wonder there's a gender gap.

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

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.

You as the press secretary have to protect the president's interests and the White House's interests more broadly. And a lot of people inside the White House, as you learned, sometimes with painful experience, have competing agendas, have differing points of view, have priorities they're trying to protect.

My job is to be a spokesman - the spokesman, I suppose - for the President, for the White House, to do the daily briefings, to manage the press corps in terms of travel, day-to-day needs, access, interviews, all those issues.

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.

Almost all first ladies have had tremendous power on personnel issues, whether the public realized it or not, whether it was Barbara Bush or Nancy Reagan or whoever.