We got results that would not have been possible without a negotiating partner like Joe Biden.

After all this time and all this, quote, "experience," how is she [Hillary Clinton] not better at this [military]?

For decades we have been living lives of abundance, with little regard for our natural resources or global health. But we are now facing hard choices in our energy policy. Future generations - my children and grandchildren, along with yours - will have to live with the decisions we make today. And so it is time for us to make some tough and - hopefully - smart choices regarding our energy use and production before it is too late.

Responsibility always stops at the president's desk.

But I'm still a work in progress. My mother calls me quite frequently with various critiques of my performance on TV and other public events. She's usually pretty severe with her comments.

It's very clear that Vladimir Putin has decided that he will eliminate his opponents and anyone who stands up for democracy and freedom. And he does so with relative impunity.

But please know, whether you believe campaign contributions are speech or property, that I learned to love very dearly the right of free expression when I lived without that freedom for a while a long time ago.