If, for some unfathomable reason, you missed Newsnight last night, do make sure you see, somehow, the interview between presenter Victoria Derbyshire and the former deputy assistant to Donald Trump, Sebastian Gorka. Derbyshire has had it coming for a long time. She believes it is sufficient, when interviewing somebody who takes a Trumpish view of the world, simply to screech her idiotic objections and prevent the interviewee from speaking at all.