The scene is Des Moines, Iowa, earlier this month. Up on stage is a man running to be the Republican party’s next pick for US president. A song starts over the tannoy. It is one of the hopeful’s declared favourites. Pumping the air, he lifts the mic and begins rapping along: “You better lose yourself in the music / The moment, you own it, you better never let it go.”
So goes one of the best-known songs of the 21st century – and one of the most bizarre moments so far in the Republican primaries. Why is Vivek Ramaswamy – with an estimated net worth somewhere north of $950m – karaoke-ing about life in a mobile home? What does a product of Yale and Harvard know about having to wear a sweater coated with vomit (“mom’s spaghetti”)?