Today in Focus

Over the last six weeks, the Iranian regime has carried out a spate of executions of political prisoners. The Guardian journalist Daniel Boffey reports. Help support our independent journalism at theguardian.com/infocus

It was a historic day for King Charles as he became 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 – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Guardian US tech editor Blake Montgomery talks about the future of Apple after the resignation of its longtime CEO Tim Cook. Help support our independent journalism at theguardian.com/infocus

Keir Starmer endured another bruising day as the saga surrounding Peter Mandelson’s appointment as US ambassador continued. The prime minister faced harsh criticism from his own MPs over his efforts to stave off a privileges committee investigation, while his former chief of staff Morgan McSweeney admitted putting pressure on the Foreign Office to expedite Mandelson’s posting in highly anticipated evidence to a parliamentary committee. So how much peril is the prime minister in? Lucy Hough speaks to policy editor and host of Politics Weekly, Kiran Stacey - watch on YouTube. Help support our independent journalism at theguardian.com/infocus

The crypto tycoon has given millions to Farage’s political parties. But who is Christopher Harborne and what does he want in return?. Help support our independent journalism at theguardian.com/infocus