He’s back: Sam Altman and the chaos at the heart of the AI industry

Kemi Badenoch has described Donald Trump’s criticism of Keir Starmer as ‘childish’ and said it ‘sends the wrong signal to our opponents in Iran or in Russia’. Trump repeated his previous attack on the prime minister on Tuesday, saying: ‘Unfortunately Keir is no Winston Churchill.’ Are cracks starting to appear in the US-UK special relationship? Lucy Hough speaks to our senior political correspondent Peter Walker – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

The Reform UK leader has a lucrative extra gig sending paid-for Cameo messages. But an analysis of more than 4,000 show they include videos for a neo-Nazi group and a rioter. Henry Dyer reports – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Israel claims it has killed the influential Iranian national security chief Ali Larijani in overnight strikes. If confirmed, Larijani’s death would represent a devastating blow to the regime, and the most senior official to die since Ali Khamenei’s death. Lucy Hough speaks to deputy head of international news, Devika Bhat – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Events in the narrow waterway are causing chaos around the globe. Jillian Ambrose explains why. Help support our independent journalism at theguardian.com/infocus

Donald Trump is pressuring European allies to protect the strait of Hormuz, warning that Nato faces a ‘very bad’ future if members fail to offer assistance. The strait of Hormuz is one of the most important shipping routes in the world. A fifth of international oil supplies pass through the waterway, which has been disrupted since the start of the war. Lucy Hough speaks to the Guardian’s south Asia correspondent, Hannah Ellis-Petersen – watch on YouTube. Help support our independent journalism at theguardian.com/infocus