The Iranian regime supports violent extremists and challenges us across the region. It pursues a nuclear capability that could spark a dangerous arms race and raise the prospect of a transfer of nuclear know-how to terrorists. Its president denies the Holocaust and threatens to wipe Israel off the map. The danger from Iran is grave, it is real.

If we don’t uphold our Constitution and our values, that over time, that will make us less safe and that will be a recruitment tool for organizations like Al Qaeda. That’s what I have to keep my eye on.

We reject the use of national security letters to spy on citizens who are not suspected of a crime.

You can't manage [country] the way you would manage a family business.

We can’t afford to be so worried about losing the next election that we lose the battles we owe to the next generation. The real gamble in this election is playing the same Washington game with the same Washington players and expecting a different result. And that’s a risk we can’t take.

The pyramids are one of those things that live up to the hype. They're elemental in ways that are hard to describe.

We're not going to baby sit a civil war.