It is one of the questionable perks of Donald Trump’s “wall of sound” approach to communication that the slightly icky moment of connection between the world of Maga and one of Hollywood’s hottest young stars was broadcast live and uncut. As the US president boarded Air Force One, a reporter asked whether he had any thoughts on Sydney Sweeney, a “very hot actress right now”, being a registered Republican. Of course he did. “She’s a registered Republican? Ooh, now I love her ad. Is that right? Is Sydney Sweeney … You’d be surprised at how many people are Republicans. That’s...