Every president, if you watch what they look like when they come into office, you can see their hair turn white because it's such a hard job.

The children-my own and other people's-became the passion of my personal and professional life.

I'm not going to tell people that I will raise your incomes and not your taxes, and not mean it, because I don't want to see the kind of struggle that the middle class is going through exemplified by these promises that would raise taxes and make it much more difficult for many, many Americans to get ahead and stay ahead. That is not my agenda.

Every single child should have the chance to live up to his or her God-given potential.

I think Barack Obama had the right idea [on negotiations with enemies], and the bottom line is that of course there have to be conditions. But, of course it doesn't do us any good to not talk with our adversaries.

The USA won't be competitive or fair if we don't help more families give their kids the best possible start in life.

It just seems to me that this is something that the American people deserve to see. And I have no reason to believe that [Donald Trump] is ever going to release his tax returns, because there's something he's hiding.