I think the cost of energy will come down when we make this transition to renewable energy.

The role of campaign contributions in our political system and the role of lobbyists have now reached levels that are quite unhealthy for the operations of our democracy. But the antidote, as in past eras of lobbyist excess, is for more involvement by citizens to build pressure on members of the House and Senate to serve the public interest.

I doubt nuclear power will play a much larger role than it does now.

I have faith in the United States and our ability to make good decisions based on the facts.

I don't have the illusion that there's any position or role in the world with as much potential for bringing about change as that of president of the United States.

We are seeing every night on the television news now a nature hike through the Book of Revelation. These climate-related extreme weather events have convinced the vast majority of people that the scientists have been right for a long time. We have to address this.

I pledge to you today that as president, in my first budget, I will introduce the largest increase in special education ever.