Donald Trump has always loved a show of gold. He installed gold-leaf covered walls at Mar-a-Lago and has covered the Oval Office with gold figurines and gilded wall features. Big gold-coloured letters welcome the world to TRUMP TOWER on Fifth Avenue, New York.

So the US president clearly felt right at home as he accompanied his host, Crown Prince Mohammed bin Salman, through the gilded luxury of the Royal Court of Saudi Arabia.