'Not again!' I thought to myself this morning, as news trickled out that John McCain was set to pick Alaska governor Sarah Palin as his running mate. Not again, because too often women are promoted for the wrong reasons, and then blamed when things don't go right.

The exposed nature of life in the public square affects leaders' attitudes toward risk - and failure.

Obama seemed poised to realign American politics after his stunning 2008 victory. But the economy remains worse than even the administration's worst-case scenarios, and the long legislative battles over health care reform, financial services reform and the national debt and deficit have taken their toll. Obama no longer looks invincible.

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.

It isn't fate but fecklessness that has shoved Sarah Palin to the sidelines of national politics. The real tragedy is that she's taken a lot of other serious Republican women with her.

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.

After I left the White House, I kept a foothold in the business of American politics as a talk-show host, analyst, commentator, speechmaker, and occasional writer. I was no longer a practitioner, but I was still a partisan, a Democrat, a blue-stater through and through.

As women slowly gain power, their values and priorities are reshaping the agenda. A multitude of studies show that when women control the family funds, they generally spend more on health, nutrition, and education - and less on alcohol and cigarettes.

Bill Clinton sitting on Air Force One getting his hair cut while people around the country cooled their heels and waited for him, became a metaphor for a populist president who had gotten drunk with the perks of his own power and was sort of, you know, not sensitive to what people wanted.

Women have a lot of power in private life. There are many men who would say, 'Hey, women already rule my life.' But with women, more is more. The more there are, the more the world gets used to seeing them. We change the culture. We begin to expand options and lead and manage.