EU could rethink Brexit extension after latest Johnson manoeuvre

France’s EU minister, Amélie de Montchalin, who says clarity from London is needed. Photograph: Jacques Witt/SIPA/REX/ShutterstockEU plans to offer the UK an extension up to 31 January on Friday is expected to be put on hold after Boris Johnson threatened to pull the Brexit deal if Jeremy Corbyn rejects a general election.Sources said the dramatic developments in Westminster needed to be fully understood and the choreography in Brussels could change.Donald Tusk, the European council