Donald Trump hoped Vladimir Putin would agree to a ceasefire in Ukraine. Instead he made marginal concessions, then launched a missile attack. Our correspondent assesses the implications. Tesla’s falling sales are not just down to Elon Musk’s politics (9:42). And a flowering of literary erotica (15:40).Listen to what matters most, from global politics and business to science and technology—Subscribe to Economist Podcasts+For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.