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.

Now, here's a good question: should serious people focus on global political instability - terrorism, failing states, nuclear weapons - or should we focus on global climate instability - droughts, floods, extreme weather? Here's the correct answer: yes, both, because climate disruption will make every other national security problem worse.

Trump is much, much worse than people understand. In his ideal world, you would have an alliance between Trump, Putin, Marine Le Pen, maybe a right winger might knock off Merkel in Germany, and you'd have this sort of, essentially, a nationalist populist alliance that can only be made sense of when seen as a right-wing, white nationalism against the world. Because, who do they want to fight? They want to fight Asia and China, they want to fight Latin America and Mexico.

It's become fashionable to put down people who we then expect to vote for us.

America cannot be America in the new century until it deals with these new questions of gender, including the trans issues, and the questions around faith and Islam.

We need to invest in job training programs, especially those that include child care, transit stipends and paid apprenticeships and internships.

Well, we in America are about to break up with oil. Why not break up with poverty and discrimination too?