Former FBI official: 'Crime may have been committed' by Trump

A former FBI deputy director has said that a "crime may have been committed" when Donald Trump sacked the head of the organisation and tried to publicly undermine an investigation into his campaign's ties to Russia.

Andrew McCabe also said in the interview with CBS' 60 Minutes that the FBI had good reason to open a counterintelligence investigation into whether Mr Trump was in league with Russia, and therefore a possible national security threat, following the May 2017 firing of then-FBI director James Comey.