The dollar is the reserve currency of the world.

Al Qaeda, the Taliban, a whole host of networks that are bent on attacking America, who have a distorted ideology, who have perverted the faith of Islam, and so we have to go after them.

In the United States, if 43 percent of eligible voters do not vote, then democracy is weakened.

When this crisis began, crucial decisions about what would happen to some of the world's biggest companies - companies employing tens of thousands of people and holding trillions of dollars in assets - took place in hurried discussions in the middle of the night. We should not be forced to choose between allowing a company to fall into a rapid and chaotic dissolution or forcing taxpayers to foot the bill.

It's the idea held by generations of citizens who believed that America is a constant work in progress; who believed that loving this country requires more than singing its praises or avoiding uncomfortable truths. It requires the occasional disruption, the willingness to speak out for what's right, and shake up the status quo.

Donald Trump is somebody who I think likes to mix it up and to have a vigorous debate.

No single nation should pick and choose which nations holds nuclear weapons. And that's why I strongly reaffirmed America's commitment to seek a world in which no nations hold nuclear weapons.