I want to be clear that when you mention the Republican critique of President Obama, that is not President-elect Trump's critique, right? So you have a real clash within the Republican Party, and I think within the Trump administration, about how to develop policy toward Russia.

In the short run, the big windfall winners ... have been the Islamists.

Take cyber-capabilities. We have way more cyber-capability than Russia do. We could intervene in their elections easily. We choose not to do so because we're a different country. That's what Obama was trying to say.

I think Russia is dangerous, not a superpower. I know what the president is trying to say. I worked for him for five years, not just two.He doesn't want us to overreact. He doesn't want to go back to the Cold War and some superpower competition. But my own view, and I think General Mattis stated something similar today, is that Russia is a challenge for the United States. It is a threat to some of our allies.

Putin is now nationalist. And what he does is, he tells the Russian people, OK, you may have a little less chicken in your pot, but I'm making Russia great again. Look what we're doing all other the world. Everyone is paying attention to us. And Russia is a great power, on par with the United States and others.

We can deal with Russia on counterterrorism. We have and I think we are right now. That's easy.

In retrospect, all revolutions seem inevitable. Beforehand, all revolutions seem impossible.