I think Americans have every reason to be worried about ISIS and the network of terrorist groups, because they have proven to be sophisticated and effective in wreaking violence and murder in many parts of the world, including in San Bernardino with their somehow connected radicalization of that couple there.

I do not add a penny to the national debt.

We acknowledge-now with President Obama-that we have made mistakes in the United States, and we along with other developed countries have contributed most significantly to the problem we face with climate change.

All of our presidents come into office looking so vigorous ... They grow grayer and grayer, and by the time they leave, they’re as white as the building they live in ... I have one big advantage: I’ve been coloring my hair for years. So you’re not going to see me turn white in the White House.

I know Donald's [Trump] trying very hard to plant doubts about it, but I hope the people out there understand: This election's really up to you. It's not about us so much as it is about you and your families and the kind of country and future you want. So I sure hope you will get out and vote as though your future depended on it, because I think it does.

I will defend Planned Parenthood. I will defend Roe v. Wade, and I will defend women's rights to make their own health care decisions.

For 40 years, everyone running for president has released their tax returns. You can go and see nearly, I think, 39, 40 years of our tax returns, but everyone has done it.