What makes a politician defect and change political sides? Matt talks to four politicians who decided to jump and how they kept it a secret including; Alan Howarth, Douglas Carswell, Anna Soubry and Dr Phillip Lee.
PLUS KNIGHT AT THE MARRIOTT... India Knight and James Marriott discuss taking...
As Boris Johnson claims 'he was not told' the Downing Street party would breach lockdown regulations, Matt Chorley and Patrick Maguire pause the action between the exchanges at the dispatch box to explain what's going on.
Alice Thomson and Robert Crampton discuss Boris Johnson's leadership...