Brexit Party leader Nigel Farage has been pranked on his LBC phone-in show by a caller who claimed to have changed from being a Remain voter to a Leave voter after a "monumental thing". 

After some introductory waffle about Boris Johnson the caller, whose Twitter handle is @basementshaxx but was called "Mark" – a new caller from Northampton – on air, explained to Nigel Farage what had happened to him to make him switch sides: