We're old enough to remember when parties in Downing Street were still legal. On this festive episode, Kirsty Buchanan, Special Adviser to Theresa May when she was Prime Minister, and Frankie Leach - adviser to Jeremy Corbyn when he was Leader of the Opposition for Labour - reminisce about their *legal* Whitehall Christmas parties. Kirsty shares her memories of trying to do a Brexit deal in No 10 while staff sung karaoke in the next room, tells us about sleeping over in the press room. Meanwhile, down the street, Frankie is belting out karaoke. But one Christmas was very different - when Jeremy Corbyn's Labour party lost the general election. Email us anytime: hello@whitehallsources.com.