The criminal-justice system is, obviously, the sole source of racial tension in this country [USA] or the key institution to resolving the opportunity gap. It is a part of the broader set of challenges that we face in creating a more perfect union.

We're showing that there's no excuse for other nations to come together, both developed and developing, to achieve a strong global climate agreement next year.

We know we can't stop every act of violence, every act of evil in the world, but maybe we could try to stop one act of evil, one act of violence.

If, technologically, it is possible to make an impenetrable device or system where the encryption is so strong that there's no key - there's no door at all - then how do we apprehend the child pornographer? How do we solve or disrupt a terrorist plot?

Being attentive to inequality and not tone deaf to it. But offering prescriptions that are actually going to help folks in communities that feel forgotten. That's going to be our most important strategy. And I think we can successfully do that.

With respect to the pledge I made that if you like your plan you can keep it. The way I put that forward unequivocally ended up not being accurate.

The United States is committed to a regional order rooted in international rules and norms, including freedom of navigation, and the peaceful resolution of disputes. That's the only way to ensure our common security.