If [Donald] Trump throws 20 million off of health care, that's going to be - if he handles this badly - and it's very hard to handle it right, then that's a - a huge advantage in the mid-terms for us.

Government-mandated and -subsidized ethanol from corn will go down in history as the "Iraq War" of environmental solutions: ill-considered, costly, and disastrous.

To change our laws and culture, the green movement must attract and include the majority of all people, not just the majority of affluent people.

I've had a chance to meet some of my civil rights heroes and, more recently, members of the young generation around [Barack] Obama, people in their teens and twenties who were determined to make history and who were too idealistic to think that what they were trying to do might be impossible. They proved that visionary pragmatism can win over the majority. That comes from a particular place in your heart that generation Y is offering America. They just can't afford to be naive now, in terms of the ferocity of the opposition.

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

To green our country, regular people will have to put on hard hats and work boots, roll up their sleeves - and get to work.

We have to accept that some very toxic stuff was marbled into the Trump phenomenon.