I believe democracy can survive. But it's certainly true that the euphoria of the 1990s - an era when democracy was spreading and more and more people found it attractive - has ended. Trump is not a cause but rather a symptom of this change.

We may be reaching the end of the liberal world order.

What is the appeal of Trump, really? It's nostalgic: "Make America great again." Like European nationalists, he has a vision of a "real" America, one which predates globalization, immigration, feminism, the civil rights movement and technological change, an imaginary 1950s to which we can now return. That is actually not very different from the kind of language that Marine Le Pen uses, or parts of the Brexit movement.

What's interesting about Navalny is that he has run a - not so much a pro-democracy campaign in Russia, but an anti-corruption campaign. He seems to have access to quite a lot of information about very senior Russians, including Putin.

Putin has made life difficult for a lot of Russia's richest men; they don't like the sanctions; they don't like the war with the West. Many of them have houses and families and businesses in the West, and so I can see them being unhappy. But at the moment, the political system is so constructed that it would be very difficult for them to leave. That's not saying it couldn't change.

High national emotions are permissible when a soccer team is playing precisely because they are impermissible at most other times. There aren't, simply, many other places where you can sing your national anthem until you lose your voice without causing a riot. In the context of soccer, flag-waving nationalism - even chauvinistic, anti-foreigner, flag-waving nationalism - is acceptable in Britain.

Unlike most European countries, the police in the US are decentralized; even the FBI has regional offices. Amending the constitution is a long and tedious process.