I think ultimately Obama's ability to rebuild America's image in the world will depend less on his personal good will and more his ability to rebuild an American economic model that seems stable and humane and dynamic.

The top line is that hubris is a disease that comes from success.

Our sense of optimism, our can-do spirit, that's a source of great strength in America. But when there are no limits at all and we've gone through whole periods where we think everything has gone right, that's when disaster tends to strike.

On domestic policy, one of the major stories in American politics has been the growing ideological and political self-confidence of the Democratic Party, and the growing ideological and political pessimism of the Republican Party.

I think the tragedy of Barack Obama's presidency is that although a lot of people around the world really admire Barack Obama a lot, they don't admire the American political and economic model as much as they used to.

There's a ton of academic literature that shows people are much more critical of female leaders than they are of male leaders. They're much less tolerant of female ambition, much more threatened by female power.

Foreign policy is a little bit like a guy who goes to Las Vegas. If you win too much, then you eventually bet the mortgage. You start to think you are infallible.