Inside the brain of Donald Trump (with Bonnie Greer)

What's really behind Donald Trump's decision to run again for president of the USA? What happens if Ron DeSantis beats him to the Republican nomination? And would Joe Biden defeat either of them and return to the White House?  The New European columnist Bonnie Greer explains all to Steve Anglesey. Plus: Could Nigel Farage's comeback kill off the Conservatives? And which Brexiteers are in our Hall of Shame? Producer: John Dakin