Boris Johnson: Senior Tories urge PM to quit after party apology BBC NewsLondon Calling: Boris Johnson faces calls to resign over lockdown party CBS NewsUK PM Boris Johnson faces calls to quit after lockdown party apology - BBC News BBC NewsThe Guardian view on Boris Johnson’s apologetic defence: so begins an era of political chaos The GuardianThe Guardian view on Boris Johnson and the Downing Street parties: a price must be paid The Guardian