Thanks, Joe. Sorry, but you had to go.

Eight days ago, I did a blog posting arguing that Joe Biden needed to step down as the presumptive presidential nominee of the Democratic Party. He has now – after much pressure and delay – agreed to go.

The selection of a new candidate is uncharted territory. I would like to see a contest rather than a coronation. Kamala Harris might be the person to beat Donald Trump, but I’m not sure of that. At this stage, I would back Gavin Newsom, the Governor of California.

We’ll see. The stakes are massive – for the United States and for the world.