We are talking about capital-intensive enterprises, so market certainty is the key. Investors and entrepreneurs have to know that there will be a guaranteed U.S. renewable energy market in which they can compete. Otherwise, they will create the next generation of green companies and green jobs in Asia, not here.

We actually need conservatives to be better conservatives and we need liberals to be better and stronger liberals.

Distorting attacks when people already don't trust you is not smart.

The main obstacle is the entrenched power of the legacy polluters.

Most people walking around in a mall or on a college campus are carrying on them better technology than the entire U.S. government had when it put a man on the moon. Each one of us is a walking technological superpower.

The thing about this [Donald] Trump phenomenon is that there's a lot of good stuff in it; the anti-elitism, the concern for working class jobs.

You can't lead anybody you don't love. You can't do it. It's not possible.