Independent economists say immigration reform will grow our economy and shrink our deficits by almost $1 trillion in the next two decades. And for good reason: when people come here to fulfill their dreams - to study, invent, and contribute to our culture - they make our country a more attractive place for businesses to locate and create jobs for everyone. So let's get immigration reform done this year.

No U.S. soldier ever dies in vain because they're carrying out the missions of their commander in chief. And we honor all the service that they've provided. Our troops have performed brilliantly. The question is for the next president, are we making good judgments about how to keep America safe precisely because sending our military into battle is such an enormous step.

I don't take a dime of their [lobbyist] money, and when I am president, they won't find a job in my White House.

They say I need to be seasoned; they say I need to be stewed. They say, 'We need to boil all the hope out of him -- like us -- and then he'll be ready.'

My God, Donald Trump is unfit! He's ill-tempered, he's unsuited, he is not qualified, he's unsuited to be president.

If you think that we've overregulated in the environmental space what I can show you is that we have tripled the amount of wind power in this country, increased by tenfold the amount of solar power. We are producing as much oil and gas as we've ever produced.

Ultimately, only diplomacy can bring about a durable solution to the challenge posed by Iran's nuclear program. As President and Commander in Chief, I will do what is necessary to prevent Iran from obtaining a nuclear weapon. However, I have a profound responsibility to try to resolve our differences peacefully, rather than rush towards conflict.