Torture is how you create enemies, not how you defeat them.

To break our addiction to oil is one of the greatest challenges that our generation will have to master.

I've now been in 57 states. I think one left to go.

The UK is an extraordinary partner for America and a force for good in an unstable world. I hope it remains strong, robust and united.

Nobody wants to put the creditworthiness of the United States in jeopardy. Nobody wants to see the United States default. So we've got to seize this moment, and we have to seize it soon.

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.

I've been involved in the intelligence side of the federal government for a long time. We all know that we have to have a balance between security to protect the American people and liberty. We take an oath to protect and defend the constitution and the American people.