The Iranian people are getting restive because of the challenges that sanctions have posed to their economy.

I believe marriage is between a man and a woman. I am not in favor of gay marriage. But when you start playing around with constitutions, just to prohibit somebody who cares about another person, it just seems to me that's not what America's about. Usually, our constitutions expand liberties, they don't contract them.

Throughout American history, there have been moments that call on us to meet the challenges of an uncertain world, and pay whatever price is required to secure our freedom.

It's important to know that the vast majority of people who were excited in 2008 are still really enthusiastic. We've got more volunteers now than ever, and they're engaged, they're motivated, they're not paying attention to the ups and downs of polls or Washington.

I think that there have been a number of public figures where you start hearing commentary that is dangerous because what it starts doing is it starts dividing us up as Americans.

I refuse to give in to the notion that the American people can't handle complicated information.

It could be another election where the alignments between Republicans and Democrats are different than they were this time and who a foreign country prefers.