Every three weeks, we bring online as much solar power as we did in all of 2008...That’s why, over the past six years, we’ve done more than ever before to combat climate change, from the way we produce energy, to the way we use it.

This is a time of great change in the world but America's always been a pillar of strength and a beacon of hope to peoples around the globe and that's what it must continue to be.

My goal is to maintain the international norm on banning chemical weapons. I want that enforcement to be real. I want it to be serious. I want people to understand that gassing innocent people, delivering chemical weapons against children is not something we do. It's prohibited in active wars between countries. We certainly don't do it against kids. And we've got to stand up for that principle.

I did not suggest that Iran is a democracy; just the opposite. I talked about it being a repressive theocracy. What I think is indisputable is that even within this repressive regime, the political leaders there - including the Supreme Leader - are sensitive to the concerns of the population within bounds.

Now, because he knows that his economic theories don't work, he's been spending these last few days calling me every name in the book. Lately he's called me a socialist for wanting to roll-back the Bush tax cuts for the wealthiest Americans so we can finally give tax relief to the middle class. I don't know what's next. By the end of the week he'll be accusing me of being a secret communist because I shared my toys in kindergarten. I shared my peanut butter and jelly sandwich.

We can't just drill our way out of the energy and climate challenge that we face.

What the Paris agreement now does is say to China and India and other countries that are potentially polluting, come on board. Let's work together so you guys do the same thing.