Boris Johnson's decision to close schools in England in 2021 was 'panicked' and 'unnecessary', according to Gavin Williamson, the education secretary at the time. Is he right? Also, in the race for deputy leader of the Labour party, Bridget Phillipson tells Newsnight a win for her rival Lucy Powell risked 'destabilising the Party'. Lucy Powell is on the show to respond. With Victoria Derbyshire.