He held out for a long time, but Donald Trump's former campaign manager Paul Manafort has finally flipped.What does Manafort know about the Trump Tower meeting and the Trump campaign?Is a pardon still on the table? And how close is Robert Mueller to concluding his investigation?We're joined by Emma Shortis from the European Union Centre at RMIT University in Melbourne, and Professor Sandeep Gopalan, the Pro Vice-Chancellor for Academic Innovation at Deakin University.Want to get in touch? Email russia@abc.net.au.