How do you run a debate between two men whose combined age is two-thirds that of the US republic? The answer is to have no audience, mute the one not talking, and schedule bathroom breaks (calling them commercials).
It would be an overstatement to say that next week’s clash between Joe Biden and Donald Trump will be definitive. But in a close election in which each candidate’s mental capacity is under scrutiny, it will matter a lot.
Financial Times