Putin never wanted all of Ukraine. He wanted for historical purposes to take Crimea. He did. Then he wanted a part of Ukraine that he could always use to advance Russian interests. And he is now at a point where nobody in the West is shouting, hey, stop. Give us back Crimea. It's all accepted. And so he has won.

Every nation at the end of the day must fend for itself. Sometimes, it needs help. And Ukraine deserves all the help in the world.

Well, we have got to understand, for example, Russia is an orthodox Christian nation. So is Ukraine. That happened in 988 in Crimea, a place called Kievan Rus, which was the Russia around Kiev at that time. It's 1,000 years ago, but, to a Russian, it's yesterday.

When President Obama in 2011 used military power against the Qaddafi regime in Libya, he did not even notify Congress. A few in Congress mumbled, but did nothing.

U.S. Constitution declares rather unambiguously that Congress has the responsibility to “declare war.

If anything good is going to emerge out of this, it's going to be the result of an acceptable modus vivendi between Ukraine and Russia. The two of them will have to get together at some point. It is going to be a result that many people in the West will not like, because Russia, as the bigger power, is going to get the better of the deal. So, a lot of people will say, that's appeasement. That's this - that - it's reality.

Putin is a despot, and he's a very good despot. And he will see things in a narrow way. What is good for Russia? That is what he will do. If that's represented by a move toward the Baltic, that would be very dangerous, but he would do it, on the assumption that he would ask himself the question: I am prepared to fight for Estonia. Is the United States? Is Germany? Is Britain, France?