Crown Prince Rupprecht, the heir to the throne of Bavaria who commanded the army group facing the British at the Somme, was the senior direct lineal heir of James Stuart, the Old Pretender of 1715. Had there been any Jacobites left in Britain in 1916, they would have had to regard this south German prince as their rightful king.

Journalists have to do their job. And journalists have to resist emotionalism. You have to keep your cool and to continue to do your job until you're prevented.

One of the great drivers of the alienation that has made Donald Trump possible is that the growth in the American economy has been weak. In the decade from 2005 to 2015, there was not one year when the US hit three per cent growth. And to the extent there's been growth, virtually all of it has been collected by the top 10 per cent of the population. Obviously, if we knew how to make growth faster, we would. We don't. And it's very difficult to make growth more broadly shared. Because it's not just the US that has this problem.

I have a range of scenarios. One of them is a chaos, that what could happen is Congress does step up a little bit and the administration is paralyzed. And we go through all kinds of constitutional crises, impeachment or the 25th Amendment removal process. Another frightening scenario is Donald Trump is steering his way to a series of international confrontations at the same time as he's appeasing Russia.

But the thought leaders on talk radio and Fox do more than shape opinion. Backed by their own wing of the book-publishing industry and supported by think tanks that increasingly function as public-relations agencies, conservatives have built a whole alternative knowledge system, with its own facts, its own history, its own laws of economics.

What I say is I am somebody who cares about conservative ideas. I want to see them implemented in governance.

To balance China, the democracies will need new friends - and India with its fast-growing economy, youthful population, and democratic politics seems the obvious candidate.