The problem is that, over time, big pieces of business that have to get done without leadership from Washington, don't get done.

In a world of complex threats, our security and leadership depends on all elements of our power - including strong and principled diplomacy.

If you give up on the idea that your voice can make a difference, then other voices will fill the void

I have to make the very best judgments I can make in terms of what's gonna keep the American people safe. And is what, what's gonna uphold our Constitution and our traditions of due process.

For more than four decades, the Libyan people have been ruled by a tyrant - Moammar Gaddafi. He has denied his people freedom, exploited their wealth, murdered opponents at home and abroad, and terrorized innocent people around the world - including Americans who were killed by Libyan agents.

Now, because he knows that his economic theories don't work, he's been spending these last few days calling me every name in the book. Lately he's called me a socialist for wanting to roll-back the Bush tax cuts for the wealthiest Americans so we can finally give tax relief to the middle class. I don't know what's next. By the end of the week he'll be accusing me of being a secret communist because I shared my toys in kindergarten. I shared my peanut butter and jelly sandwich.

It requires enormous energy for us to cut the African American uninsured rate by a third. A lot of scars.