[Donald Trump administration] didn`t ask me to stay and 40 years seemed like enough.

We did really well for a generation after 1989 and the fall of communism. Our liberal values expanded in the world, our prosperity expanded.

I am not one of these people that believes that Russia is doomed, or somehow, you know, inevitably disposed to act according to its worst traditions. But all the more reason, therefore, to resist their aggression and take it seriously.

Russia comes from a place of deep resentment against the West, in general, and the United States in particular. They are rapacious, because they want back as much of their empire as they can grab. And we need to resist that. At the same time, we should be able to look for areas of common interest.

Russia committed an act of aggression in Ukraine, and that's the first time since 1945 a European country has seized the territory of another European country. That's serious business. They started a war with their neighbor. Their troops as well as the separatists funded and controlled by Russia are killing people just about every day.

Realism is important in foreign policy. You have to be realistic about what you can achieve, and about the pitfalls, and problems along the way, of which there are plenty. Nothing is easy. It's always rough.

We Americans are focused on Russia`s attacks with our electoral system and we`re consumed with that. But Russia is pushing against the West generally.