In the long run, however much damage we come through, Obama's vision is the one that's going to be left standing. It's a question of how much pain and suffering America has to endure in the meantime.

It's pretty clear that Hillary Clinton was a deeply, deeply flawed alternative. She had the wrong combination of the internal political chops to muscle out all the mainstream nominations from the field, leaving only Bernie Sanders, who was unacceptable to the Democrats' party establishment. But she also had a real lack of political skill that would enable her to win the general election.

That's an important Obama accomplishment: he raised taxes back to Bill Clinton levels, and made a major dent in inequality doing so. That's certain to be reversed, that's going to disappear. The Republicans are going to slash the rich's taxes.

On Obamacare, every day that goes by I have more evidence that I wish I could put in my book, on how difficult it is for the Republicans to eliminate this law. They have no real alternative. They're afraid to take away health care from the 20 million people who now have it.

The story of the Republican Party is of a far-right that has moved from the fringes of the party to a complete domination of the party. The moderate, mainstream and pragmatic leaders of the party have been pushed out or died off.

I worry about the entire structure of American democracy under Trump.

Donald Trump will be a tragedy, a sad joke in American history.