The FBI reportedly opened an inquiry in 2017 into whether US President Donald Trump was working on behalf of Russia after he fired FBI director James Comey.
The investigation - a dual counterintelligence and criminal probe - was launched after the dismissal of Mr Comey in May 2017, the New York Times reported, citing anonymous sources.
The counterintelligence aspect consisted of determining whether Mr Trump was knowingly or unknowingly working for Moscow and whether he was a threat to national security, the newspaper reported.
It added the criminal portion related to Mr Trump's firing of Mr Comey and whether it constituted obstruction of justice.
The FBI investigation was soon folded into special counsel Robert Mueller's inquiry into Russian interference in the 2016 vote and possible collusion between his campaign and Moscow, it said, adding that it was unclear if the counterintelligence aspect was still being pursued.
https://www.telegraph.co.uk/news/2019/0 ... sia-comey/