Just when Donald Trump thought he could celebrate the end of the longest government shutdown in US history, the Democrats had a trick up their sleeve. They released another batch of emails, some from the disgraced financier Jeffrey Epstein, who wrote that ‘of course he knew about the girls’, referring to Trump. This week, Jonathan Freedland speaks to the Guardian’s George Chidi about why the Epstein files will not go away and how the saga is likely to unfold over the next few weeks