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.

Gingrich was a far more volatile and aggressive individual than Boehner, but the institutional norms of self-restraint, and perhaps even self-interest, have broken down under the pressure of an increasingly abnormal Republican Party.

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.

I do think Donald Trump would be a catastrophic turn in American history.

I've read a lot of war writing, even World War I writing, the British war poetry of Wilfred Owen and Siegfried Sassoon, Robert Graves's memoir "Goodbye to All That," and a civilian memoir "Testament of Youth" by Vera Brittain .

I think that bias is not a fixed thing. It's not as though some people are biased and others are not. It ebbs and flows. It can be manipulated. It changes according to a person's circumstances.

I would caution anyone who thinks the solution is to get out to realize that Iraq will be our problem, whether we're there or not, for years to come. It will not be Vietnam; it will not let us go home and lick our wounds.