The threat of Saddam Hussein with weapons of mass destruction is real, but as I said, it is not new. It has been with us since the end of that war, and particularly in the last 4 years we know after Operation Desert Fox failed to force him to reaccept them, that he has continued to build those weapons. He has had a free hand for 4 years to reconstitute these weapons, allowing the world, during the interval, to lose the focus we had on weapons of mass destruction and the issue of proliferation.

I think, all in all, the Obama administration and what President Obama has focused on has lived up to our need to protect American interests, to live our values and assert our values, and to stand up for future generations.

This revolution began with young people in Syria demonstrating because they wanted a future. They wanted opportunity, education, and so forth. They went out and they did it. Thugs came out and beat them up. The parents got angry that the thugs beat the kids up, and they went out and demonstrated, and they were met with bullets. They were killed. That's how this began.

What Donald Trump is doing is serving the polluters and serving a narrow group of ideological interests. That's not leadership. That's abdication of responsibility, and this step does not make America first. It makes America last.

If we don't go far enough fast enough, the damage we inflict could take centuries to undo - if it can be undone at all.

I’ve often said that global climate change is an issue where no one has the luxury of being “half-pregnant.” You either are or you aren’t. And so it is with climate change. You either understand and accept the science – or you don’t. Folks this isn’t a cafeteria where you can pick and choose and accept the science that tells us what is happening, but then reject the science that warns us what will happen.

What we have to do is go on the offensive. [The science on climate change] has been maligned and misinterpreted, and we need to fight back... [P]eople [need to] stop being moved by these talk show [hosts] and start looking for the facts themselves.