As France’s Emmanuel Macron and the UK’s Keir Starmer visit the White House this week, we unpack how European leaders will approach Trump when it comes to Ukraine and other defence issues. Also in the programme: we assess the future of Russia and China’s relationship as relations between Washington and Moscow warm. Then: as Rio de Janeiro’s carnival kicks off this week, why is it so important for qualified journalists and experts to cover such events? Plus: Elon Musk’s micromanagement of US federal agencies.