A team of federal investigators led by Special Counsel Robert Mueller have gathered sufficient evidence to charge Michael T. Flynn and his son Michael G. Flynn, as they carry out a probe into alleged collusion between Trump aides and Russian actors, NBC News reported on Sunday.
Lt. Gen. Michael T. Flynn served as Trump's national security adviser for just 24 days until he was forced to quit due to accusations he had contact with Russia's ambassador to the US and misled Vice-President Mike Pence about the conversations.
They are also investigating whether he attempted to orchestrate the extradition of Fethullah Gulen from the US to Turkey in exchange for millions of dollars.
Mueller's investigation, which is being carried out on behalf of the US Department of Justice, has already indicted three members of Trump's campaign team. They are former campaign manager Paul Manafort, and former campaign aides Rick Gates and George Papadopoulos.