I've always viewed the Paris Agreement as a starting point. If you look at all the commitments that have been made by all the countries, it's still not sufficient to deal with the very dangerous situation we face. What it has done is that it created an architecture whereby as technology improves, as we find new clean sources of energy, as we make our economies more efficient, then gradually we can turn up the dial and improve the outcomes of Paris.

Because our right to worship freely and safely, that right was denied to Christians in Charleston, South Carolina, and that was denied Jews in Kansas City, and that was denied Muslims in Chapel Hill, and Sikhs in Oak Creek. They had rights too. Our right to peaceful assembly, that right was robbed from movie goers in Aurora and Lafayette.

We have come from a time of the large-scale, planned, Al Qaeda-style attacks, to the encouragement of lone wolves: Fort Hood, Chattanooga. To the encouragement of people to act on their own.

Every life must be given the chance to realize its full potential - that every life matters.

If John McCain wants to have a debate about who has the temperament, and judgment, to serve as the next Commander-in-Chief, that's a debate I'm ready to have.

To those who cling to power through corruption and deceit and the silencing of dissent, know that you are on the wrong side of history; but that we will extend a hand if you are willing to unclench your fist.

No matter how much you've done, or how successful you've been, there's always more to do, always more to learn, and always more to achieve.