We cannot have a society, in which some dictator some place can start imposing censorship here in the United States.

International inspectors are on the ground and Iran is being subjected to the most comprehensive, intrusive inspection regime ever negotiated to monitor a nuclear program. Inspectors will monitor Iran's key nuclear facilities 24 hours a day, 365 days a year. For decades to come, inspectors will have access to Iran's entire nuclear supply chain. In other words, if Iran tries to cheat - if they try to find build a bomb covertly, we will catch them.

If you think that we've overregulated in the environmental space what I can show you is that we have tripled the amount of wind power in this country, increased by tenfold the amount of solar power. We are producing as much oil and gas as we've ever produced.

My identity might begin with the fact of my race, but it didn't, couldn't end there. At least that's what I would choose to believe.

I can be much more sarcastic and, I think, sometimes withering in my assessments of things than I allow to show in my public life.

This is my number one priority. I've got a lot of things on my plate. But my top priority is to defeat ISIL and to eliminate the scourge of this barbaric terrorism that's been taking place around the world. Groups like ISIL can't destroy us. They can't defeat us. They don't produce anything. They're not an existential threat to us. It is very important for us to not respond with fear.

The terror attacks have reshaped the campaign and may have given another boost to Donald Trump.