I love the Mexican people; I respect the Mexican leaders - but the leaders are much sharper, smarter and more cunning than our [American] leaders.

America's not the world's policeman. Terrible things happen across the globe and it is beyond our means to right every wrong. But when, with modest effort and risk, we can stop children from being gassed to death and thereby make our own children safer over the long run, I believe we should act.

Well, I think a handshake is something that honorable men do. Before we had contracts we had handshakes that expressed that we were making an arrangement that was based on our honor. And I don't think I can shake the hand of someone who shows and lacks honor by attacking a man's faith.

I think that by arming the allies of ISIS, the Islamic rebels against [Bashar] Assad, that we created a safe space or made that space bigger for ISIS to grow.

I think if we want to defeat terrorism, I think if we truly are sincere about defeating terrorism, we need to quit arming the allies of ISIS. If we want to defeat terrorism, the boots on the ground - the boots on the ground need to be Arab boots on the ground.

I would have voted 'no' on the Iraq war and 'yes' to Afghanistan.

Any time someone tries to tell you that metadata is 'meaningless, don't worry, it's just who you call, it's just phone records, it's not a big deal' - realize we kill people based on metadata. So they must be pretty darn certain that they think they know something based on metadata.