It was a historic day for King Charles, the first British monarch to address a joint session of Congress in 35 years, before enjoying a lavish dinner at the White House. There were jokes, subtle digs and the supposedly apolitical monarch even appealed to Donald Trump on Nato and Ukraine – but how did the US president react? Helen Pidd speaks to the Guardian columnist and host of Politics Weekly America, Jonathan Freedland Listen to the latest episode of Politics Weekly America: ‘The Trump purge: is the FBI’s Kash Patel next?’. Help support our independent journalism at theguardian.com/infocus