Like an odorless gas, [inequality] pervades every corner of the United States and saps the strength of the country's democracy. But it seems impossible to find the source and shut it off.

We all have a dark side but we keep it in its place because it's destructive. And Donald Trump has said, no, no, bring it out because that's the energy we need in order to reverse all these horrible things that have been happening in America.

Since I was a kid. I had this series by Ballantine Books about the history of World Wars I and II. In my 20s, it was the Vietnam War literature of novelists like Tim O'Brien, Philip Caputo, and Tobias Wolff, and then nonfiction such as "A Bright Shining Lie" by Neil Sheehan and "The Best and Brightest" by David Halberstam . Those are the two best histories of Vietnam.

When Donald Trump says make America great again, we know whose America that is.

The ranks of educated professional swelled as more Americans went to college and more Americans sort of adopted a more cosmopolitan lifestyle and worldview. And as the Democrats were looking for an alternative to the unions who no longer seemed like a large enough base for the party, they found the educated who veered more toward a progressive cultural outlook, who may have had - may have been working in the financial sector, in entertainment, in media, in universities. That became really the rank and file of the Democratic Party over a long period of time.

Ideology knows the answer before the question has been asked. Principles are something different: a set of values that have to be adapted to circumstances but not compromised away.

We will have a more just society as soon as we want one.