When it comes to politics, we have an internal glass ceiling. We stand as good a chance as a man to win a political race, but women don't want to run at the same rate as men do. People point to the work-family balance issue, but I think it's much more than that. Many women don't have children, or have children who are no longer at home. There are some deeper psychological and emotional issues in play, like the fact that many of us feel like the embarrassment, humiliation and personal demonization in politics are simply more than our hearts can take. What stops us is fear.