Because I have known Donald Trump for more than 30 years, my analysis of him was far easier than for most journalists. If you read my book “The United States of Trump,” you can see a pattern of behavior that held up almost to the end of his presidency.

But with Joe Biden, it’s far different. I have only spoken to him one time - at a correspondent’s dinner in Washington. I have little insight into him as a human being, always the most important part of honest analysis.