I think Ronald Reagan changed the trajectory of America in a way that Richard Nixon did not and in a way that Bill Clinton did not. He put us on a fundamentally different path because the country was ready for it.

Yes to trade, but trade that ensures that these other countries that trade with us aren't engaging in child labor.

If the critics are right that I've made all my decisions based on polls, then I must not be very good at reading them.

If I did not love America, I wouldn't have moved here from Kenya.

There are always things that I think I wish I could have done better.

The alternative, no limits on Iran's nuclear program, no inspections, an Iran that's closer to a nuclear weapon, the risk of regional nuclear arms race, and the greater risk of war - all that would endanger our [American] security.

The reason I take pride for that is one of the things you worry about when you're in the bubble, and there's all this pomp and circumstance and hail to the chief is, do you lose touch with what you thought was important and what brought you here? And I'm proud that I don't think I have lost touch.