Putin is not a mass murderer. But, having said that, he is a product of the KGB, and the KGB was, of course, the secret police force of the Soviet Union.

Donald Trump may undermine some of the traditional checks on the presidency: the press in particular, but also the various government and Congressional ethics bodies, as well as the career civil service.

I have been told by people close to Trump that "Brexit Britain" is the only foreign policy issue that interests him, because he thinks the UK referendum paved the way for him. He hopes to help Britain leave the EU, and possibly to damage the EU, by offering a trade deal.

Khodorkovsky is richest man. And he lost everything when Putin arrested him and took his company away, and essentially took his company away, sold it, and gave it to other people, and enriched them. So, he's a complicated figure as an opposition leader, and people admire him - he was in prison, and he was very brave, and he's written some good things since then, and so on. But at the end of the day, people see him as being part of the corrupt system that has done so much to undermine the Russian system since the 1990s, and I don't know that he can ever be a really popular leader.

Putin imagined it would be different. So, like many Russian leaders before him, he imagined that Ukraine was basically Russia, but they speak with a funny accent. Actually, it's not Russia; it has a different identity. It has a very different language. Russians don't automatically understand Ukrainian. And, in particular, the way Ukraine has developed over the last two decades is different from the way Russia has developed.

Putin discovered that when he invaded Ukraine, he expected the Ukrainians to rise up and join him and say, "Yes, we want to be part of Russia," and that didn't happen. And they've been paying, actually, I think quite a high price for it, both in the ongoing war in Ukraine - which is I think increasingly unpopular in Russia - and also in the Western sanctions, and in general, the separation from the West that was caused by that.

Though the poorest Americans voted for Hillary Clinton, many relatively wealthy people voted for Trump and generally it's a mistake to think that economics explains Trump. The US is doing relatively well, the economy has significantly recovered since 2008, unemployment rates are low. I would say rather that his appeal to the working class was cultural: "I'll bring back the kinds of jobs your fathers had," and, by implication, the whiter, simpler post-war world when America had no real economic competition.