From pollution to policing – can Sadiq Khan clean up London?

The US president has said the truce with Iran is ‘over’ amid 48 hours of intense strikes. In the days leading to this escalation, three tankers were attacked by Iran in the strait of Hormuz, raising questions about the clarity of the ceasefire agreement signed in June. The US military’s attacks occurred during the week-long funeral of Iran’s former supreme leader Ali Khamenei, which drew millions on to the streets. Lucy Hough speaks to the Guardian’s senior international correspondent Julian Borger – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Political correspondent Ben Quinn talks about the forthcoming byelection in Clacton after all Reform’s serious rivals declined to take part. Help support our independent journalism at theguardian.com/infocus

The US president is in combative mood as Nato leaders meet for a two-day summit in Ankara. There are divisions over Russia’s war in Ukraine, defence spending, and the US-Israel war in Iran with signs of the fragile ceasefire collapsing. The Ukrainian president, Volodymyr Zelenskyy, is holding talks with leaders as he rallies the European cause against Russia’s war that has reached the Ukrainian capital, Kyiv, as Nato allies present an increasingly united front against an unreliable US. Lucy Hough speaks to the Guardian’s central and eastern Europe correspondent Shaun Walker – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Patrick Wintour reports from the funeral of Ali Khamenei as the Iranian regime puts on a show of confidence and resilience.. Help support our independent journalism at theguardian.com/infocus

Nigel Farage has announced his resignation as the MP for Clacton, triggering a byelection in which he intends to stand as a candidate. The Reform UK leader is under scrutiny over his finances, with two investigations by the parliamentary standards watchdog over undeclared gifts. During a 15-minute press conference, he accused the media of a ‘pile-on’ over his personal finances, and harassment of his family. He said his decision was part of ‘sticking two fingers up at the establishment’ and would prove the public want him to stay on as an MP. Lucy Hough speaks to policy editor Kiran Stacey – watch on YouTube. Help support our independent journalism at theguardian.com/infocus