For the first time, preventing nuclear proliferation and nuclear terrorism is now at the top of America's nuclear agenda.

I'm not just a candidate, I'm the President

When you see a Donald Trump and a Bernie Sanders, very unconventional candidates, have considerable success, then obviously there's something there that's being tapped into; a suspicion on globalization, a desire to reign in it's excesses, a suspicion of elites and governing institutions that people feel may not be responsive to their immediate needs. And that sometimes gets wrapped up in issues of ethnic identify or religious identity or cultural identity, and that can be a volatile mix.

Our alliances and partnerships are not directed against any nation.

It [the Constitution] didn't break free from the essential constraints that were placed by the founding fathers in the Constitution, at least as it's been interpreted, and the Warren court interpreted it in the same way that generally the Constitution is a charter of negative liberties. It says what the states can't do to you, it says what the federal government can't do to you, but it doesn't say what the federal government or the state government must do on your behalf. And that hasn't shifted.

I refuse to accept any approach that isn't balanced. I'm not going to ask students and seniors and middle-class families to pay down the entire deficit while people like me, making over $250,000, aren't asked to pay a dime more in taxes.

Cutting the deficit by gutting our investments in innovation and education is like lightening an overloaded airplane by removing its engine. It may make you feel like you're flying high at first, but it won't take long before you feel the impact.