Obviously, the United States' own founding principles are self-determination. And I think what the United States and our allies want to do is to enable the Syrian people to make that determination. You know, we've seen what violent regime change looks like in Libya and - and the kind of chaos that can be unleashed.

I think there's a shared view and no disagreement as to how dangerous the situation in North Korea has become. I think even China is beginning to recognize that this presents a threat to China's interests as well.

We are making tremendous progress that ISIS really does present to the homeland and to other homelands of allies around the world.

President Xi Jinping clearly understands, and I think agrees, that the situation in North Korea has intensified and has reached a certain level of threat that action has to be taken. And, indeed, the Chinese, even themselves, have said that they do not believe the conditions are right to engage in discussions with the government in Pyongyang. And so what I think we're hopeful is that we can work together with the Chinese to change the conditions in the minds of the DPRK leadership.

The military progress both in Syria and in Iraq has been remarkable since President Donald Trump's inauguration. We have continued to liberate areas. We are making tremendous progress in liberating Mosul in Iraq, working with coalition forces, we're moving to position to liberate Raqqa.

I don't believe anyone doubts the American people's values or the commitment of the American government or the government's agencies to advancing those values and defending those values.

The increase in the greenhouse gas concentrations in the atmosphere are having an effect. Our ability to predict that effect is very limited.