Donald Trump has hit back with a childish tirade at former FBI chief James Comey’s claims that he is “morally unfit” to be president.

The US president branded Mr Comey a “slimeball” and called for him to be jailed for “leaking classified information” and “lying to Congress” in his latest Twitter outburst.

Mr Comey accused Mr Trump of treating women as “pieces of meat” in a major television interview broadcast on ABC on Sunday night following the publication of his explosive memoirs.