A lot of the people in history who I really admire lived before the hyperinformation age we're living in. Even if they were governing or solving problems in consequential periods, like the Civil War or the world wars or the Great Depression or the Cold War, they had a period of time and space to actually think, to be private and you read their biographies, and they had time to think about what was happening and how to respond. I don't think human nature has changed in the last 50-150 years, but the stresses, the demands on those of us in public life have just exploded.

The cavalier casual way that Donald Trump talks about nuclear weapons is not only frightening but it goes counter to more than 70 years of bipartisan, presidential leadership of Republicans and Democrats who believed that we have to prevent other countries from getting nuclear weapons and we have to do what we can to decrease the number of nuclear weapons in the world.

We've got to be prepared to stop these guys if they ever try to use their economic power once again, to hurt the economy, and to hurt so many Americans. And my plan, Paul Krugman, Barney Frank, a lot of experts who understand what the new challenges might be, have said I am exactly on point, and the Wall Street guys actually know that.

Right now - and this is something Donald [Trump] has supported, along with the gun lobby - right now, we've got too many military- style weapons on the streets. In a lot of places, our police are outgunned. We need comprehensive background checks, and we need to keep guns out of the hands of those who will do harm.

I think we're all safer when the police respect the communities they're supposed to serve, and the communities respect the law.

I think that being in politics, being in leadership should be as much about listening as talking. That's how I think you can get the information and sort of pick up the nuance that will enable you to do the best possible job.

I want to invest in community colleges, training programs, and high-quality apprenticeships that help people gain the skills they need for the jobs of the future.