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.

The U.S. should never get involved where we have no clear national interest. We should not intervene militarily in a country like Syria, where we can’t separate friend from foe and might end up arming the very people who hate us the most.

We live in a world, a medieval type of world, where someone can accuse you - through gossip and hearsay, and all of a sudden you're supposed to respond to specific charges from people you don't know, are not aware of who these people are, and you're supposed to respond to their specific allegations?

Benjamin Netanyahu said that ultimately, they will be stronger when they're independent. My position is exactly the same. We shouldn't borrow money from China to send it anywhere, but why don't we start with eliminating aid to our enemies.

We must always embrace individual liberty and enforce the constitutional rights of all Americans-rich and poor, immigrant and native, black and white.

Al Qaeda has been placed on the run, but not destroyed.

I do not yet know if I will find a Romney presidency more acceptable on foreign policy. But I do know that I must oppose the most recent statements made by Mitt Romney in which he says he, as president, could take us to war unilaterally with Iran, without any approval from Congress.