Climate change constitutes a serious threat to global security, an immediate risk to our national security, and, make no mistake, it will impact how our military defends our country.

I think it's perfectly consistent to say that I want my government to be operating for all faiths and all peoples, including atheists and agnostics, while also insisting that there are values tha tinform my politics that are appropriate to talk about.

The changes in thinking about same-sex marriage have come slowly at first and then in rapid course. If such change is possible in this area, is it also possible in the vexed and sordid realm of race relations?

The notion that we would condition Iran not getting nuclear weapons in a verifiable deal on Iran recognizing Israel is really akin to saying that we won't sign a deal unless the nature of the Iranian regime completely transforms. And that is, I think, a fundamental misjudgment.

You always hear about waste and abuse in Washington. And usually it doesn't mean much, because nobody ever finds where that waste and abuse is.

I will listen to you, especially when we disagree.

I will sign a universal health-care bill into law by the end of my first term as president that will cover every American and cut the cost of a typical family’s premium by up to $2,500 a year.