King Charles is due to visit Donald Trump. Here are the questions he needs to ask himself first | Zoe Williams

As Trump depicts himself as Jesus Christ, and insults everyone from Keir Starmer to the pope, how can the king hope to keep this state visit on track?The most awkward thing to happen when King Charles visited President Nixon as a young man – it was 1970, the then-prince was 21 – was that officials kept wheeling out Nixon’s daughter, Tricia, to stand next to him at events. Since they were both single, on paper anyway (this was the same year Charles met Camilla), the optics were a little primitive...